Prompt: Adrien never regretted anything…except now he regrets letting her go.

Adrien Agreste never regretted anything. He didn't regret putting on his silver ring, making it a miraculous. He didn't regret becoming Chat Noir. He didn't regret meeting his Lady or pushing his dad to let him into public school. He didn't regret the free feeling as Chat Noir. At the final battle with HawkMoth three years later, he didn't regret ending the evil mans reign, even after finding out it was his father. He didn't regret any of that. But….But the one thing he wanted was to see his Lady under the mask. To see his love. But, that was one thing he actually regretted, ironically. It was right after the last battle. His Lady and himself went to the Eiffel Tower. It was what he was waiting for. Both their Miraculous's beeped.

4 minutes left.

Chat dropped his transformation immediately, barely noticing Plagg land on his shoulder. He watched with an anxious smile as Ladybugs eyes widened and a bright smile came onto her face.

"Adrien? Your Chat Noir?!"

"Yes I am M'lady,"

"This-This is amazing! Now I don't have to feel guilty for loving both Adrien and we'll Chat!"

Adrien flushed happily. His Lady loved all of him.

3 minutes left.

"I'm glad!"

"I just-I really just can't believe this Adrien!" Ladybug rubbed her red cheeks with an excited yet nervous smile.

"You better believe it Bugaboo," Adrien winked making Ladybug blush.

2 minutes left.

"I-I'm really happy it's you," Ladybug shyly put her hair behind her ear and smiled. Adrien's heart fluttered and he reached for her hand. The fabric let him feel how small her hand was in his. It fit almost perfectly together.

1 minute left.

"I can't wait to see you Ladybug. I said it before and I'll say it again. I love that girl behind the mask, always. And you will always be my-"

0 minutes left.

A flash of bright pink and sparkles and he was holding a petite hand. Marinette stood in front of him with a nervous smile. Except when she saw Adrien's face it nearly disappeared. Adrien was pale and quickly dropped Marinette's hands.

"Marinette?"

"Surprise?" Marinette nervously looked at Adrien and said boy felt his heart deflate. Marinette was Ladybug. She was…his lady…no that can't be right!

"You-Your Ladybug…"

"Yeah, I-I know…shocking but-"

"Marinette, I," Adrien stepped away from her, hand covering his mouth as he frowned at her. Marinette's smile fell and a hurt look replaced it.

"What's wrong?"

What's wrong? Adrien felt cheated. Shy, clumsy Marinette was Ladybug. She wasn't confident and she wasn't anything like his Lady.

"Marinette, I-This-I can't…,"

"But you said-"

"I know what I said," Adrien sighed. Marinette had tears welling in her eyes as she stared at her best friend and long time crush. "But I-I don't love you Marinette. I love Ladybug. I love the hero…not you,"

"But I am Ladybug!"

"No," Adrien shook his head feeling guilty and upset. "No your not,"

Marinette's eyes widened even more and the look she pinned him with made his chest ache. He didn't love her. He loved the mask she wore. Adrien knew she couldn't wear the mask all the time and sighed. She loved him but he only loved one part of her. It wouldn't be fair to her for him to only love Marinette for Ladybug.

"I'm sorry," her voice was soft and Adrien looked up. Marinette was looking over Paris.

"I'm sorry I disappointed you,"

Adrien didn't know how to answer because in a way, she did disappoint him.

"But…But I hope we can still be…friends?"

Adrien didn't want to. He didn't want to see her and feel the guilt he did now. It would be better if they didn't. But he already broke her so much. So he looked away from her and gave a nod. He couldn't look at her. Adrien heard Marinette mutter something before a bright light made him turn and there was his Lady. She still had tears in her eyes and his heart gave a traitorous thump.

"Bye," she gave a half wave before swinging away. Adrien sighed and rubbed his eyes, feeling the pressure build behind them.

"Let's go home Plagg,"

XXX

Adrien regrets more then he would like to admit. He agreed to be her friend but he avoided Marinette at all costs. He couldn't deal with the guilt in his stomach. So he didn't talk to her and tried to avoid being near her period. But just because he stopped talking to her didn't mean he didn't notice her. How she sticks her tongue out in concentration. How she really was confident like Ladybug when needed. Now her shyness made sense. Her crush on him. She had so much passion and a smile for everyone. She was Ladybug, Adrien had fallen in love all over again. But with the real Marinette.

Adrien couldn't do anything about it though. School was over and they were heading out to College. She was leaving France. Marinette Dupain-Cheng was leaving France.

"I want to study abroad!" She looked so happy and his heart fluttered. He wanted to follow her everywhere. He wanted to apologize and beg for forgiveness. But Adrien never did. She left a few weeks into the Summer to get a head start, learning from the American designers so she could get more insight from around the world.

He missed her like crazy. Adrien wanted her with him. A few weeks after she left, Plagg did too.

"I'm sorry Adrien," Plagg whispered. "But Ladybug and Chat Noir are supposed to be in sync with each other. You haven't been in sync since the defeat of Hawkmoth. I-It would be better to just get another Chat Noir,"

Adrien understood. They were yin and yang, bad and good luck. They weren't in sync anymore. But Plagg was Adrien's friend. He didn't want the little God to leave him. But what's done is done. He was back alone in his mansion, barely any friends and no more freedom.

And everything just kept getting worse.

Adrien heard from Nino who got told by Alya who was told by Marinette that she was seeing someone new. She had a boyfriend. And she was bringing him back with her to France. Just his luck.

Adrien was in a little Café with Nino and Alya. He was the fifth wheel of a double date. Marinette was coming with her boyfriend and he was getting antsy.

"Alya!"

Her voice. As soft as ever and full of happiness. Adrien turned and his eyes widened. She was wearing an off shoulder shirt that was red with black pooka dots on it, black pant and red flats. Her lips were a taunting red and her eyes the brightest blue he had ever seen. Adrien trailed his eyes all over her body and found one hand was still in the door. As she moved, he realized it was incased in a bigger hand.

A blonde, like himself, walked in. His hair was well kept. Straight and sharp. He had a white shirt on with a grey sweater vest over it, black pants and black dress shoes. Adrien could see a sour expression on his face and felt like he would growl. But since Adrien didn't have Plagg anymore he realized that he didn't have any enhances as he did as Chat. Mari turned to her boyfriend and his whole face and body seemed to relax and have her a small smile, specifically reserved for her. She blushed and Adrien felt the familiar pang in his chest. They sat at the table and Adrien decided that he did not like this boy.

His name is Felix. Felix Delacour. (HP reference XD)

"He was a model at one of the studios I was working at. I was his designer," Marientte explained as Alya practically begged for the details. Felix stayed quiet and looked bored but the way his hand held Marinette's said otherwise.

"She was too bubbly, full of energy and clumsy," Felix stated, taking a sip of his drink. Adrien noticed he had cold blue-grey eyes and didn't see what Marinette saw. This guy was a total Grumpy Cat. (If you haven't already, look up the story Grumpy Cat! It's awesome!)

"I wasn't that bad!" Marinette huffed. Felix chuckled and kissed her knuckles.

"Princess, you nearly broke both our arms,"

Adrien bristles at the nickname and huffed quietly. He really didn't like this guy.

"I remember that!" Alya giggled, smirking at a blushing Marinette. "She told me that some totally hot stranger caught her as she fell and both of you stumbled down the stairs. How romantic,"

"Reflexes," Felix states, rubbing the ring on his finger. A familiar ring. Adrien nearly gaped at the familiar Miraculous on Felix's finger. That was his. Not this wanna be Chat Noir!

"But I guess that's how she caught my attention," Marinette blushed and kissed Felix really fast and left him a bit dazed, a small purr coming out of his chest. Adrien looked at the table with a glare, thinking about how it wasn't fair. That was his lady. His miraculous. His future.

Not anymore.

He ruined it that special day. Adrien ignored both couples for the rest of the night, feeling hurt that Plagg didn't even come out to say hello, or sneak cheese or seem to even bother Felix.

When they finally left the Café, Marinette waved goodbye before Felix wrapped an arm tightly around her, gave a nod, and both walked off.

"There so cute," Alya gushed, holding onto Nino's arm. Adrien just huffed crossing his arms.

"I give it a month,"

XXX

A month turned into 5 years. Felix and Marinette have been together for five years. Adrien watched for five years Marinette with her boyfriend. It was clear that they didn't like each other. Felix and Adrien didn't like each other at all.

Felix didn't like how Adrien flirted and tried to get close to Mari. He also doesn't like how he treated her after they found out about their identities.

Adrien didn't like Felix being with Marinette period. He doesn't like how Felix seems to be a better Chat then him. No one noticed at first. It was on the news. Ladybug and Chat Noir, still protecting the city after the fall of Hawkmoth. Alya filmed them and soon everyone new it was a different Chat Noir. He didn't say as many puns, he was quiet serious and could be an asshole. But most importantly, he synced with Ladybug. They were perfect amounts of good and bad luck. That probably hurt Adrien most. He loved Marinette.

Adrien also tried to tell her that.

It was at a celebration/birthday party for Adrien as he got his Physics degree. He was wondering around when he caught sight of Marinette. She was chatting with Rose and Juleka. It was weird not seeing her with Felix but that cat was getting re-acquainted with some of Adrien's friends.

"Mari," Adrien greeted. Said girl looked at him in surprise before a smile came on her face.

"Hey Adrien! Congrats and Happy Birthday!"

"Thanks….hey can we talk…privately," Marinette seemed hesitant and looked around, probably for Felix, before sighing and nodding.

"Of course,"

He brought her to an old guest room and she shuffled in awkwardly.

"So," he started, rubbing his hands. "How have you been,"

"Why did you bring me here Adrien?" Marinette asked, crossing her arms. Adrien sighed and looked away.

"I just wanted to talk to you…an apologize,"

"For what?"

"That night…after Hawkmoth," Marinette tensed in front of him.

"Why do you want to talk about that? It's in the past Adrien. I moved on,"

"But I didn't,"

Adrien met Marinette's shocked eyes and he gave a weak smile.

"I never stopped. I swear,"

"Adrien…"

"You loved all of me Marinette," Adrien grabbed both her hands and rubbed her knuckles like that night. "I-I didn't believe that could happen but you did. And I rejected you. I didn't want to be around you but then I noticed,"

Marinette pulled her hands away and turned her back. Adrien immediately started explaining more.

"I noticed everything that made you Marinette! Soon you were all I could think about. Ladybug was you. I should have realized it before. But I want to make it up to you!"

She didn't answer.

"I love you Marinette!"

"Why," she whispered, shoulder hunching. Adrien made a confused noise and reached for her.

"Marinette I just-"

"Why are you telling me this?!" The bluenette turned, eyes wide with tears and anger. "Why!"

"Mari-"

"Don't you think you hurt me enough? Why are you telling me you love me now?!"

"Does he know?" Adrien asked in anger. "Does he know your Ladybug? Did he tell you that he's Chat Noir?"

Marinette eyes were wide and Adrien idly wondered if he just revealed Felix's secret identity before she looked away guiltily.

"We told each other when we first met,"

It was Marinette's fourth night in America and she loved it. New York was so much fun to hang in and she loved all the clothes and designs. She also met a new person. He was sorta grumpy and mean but he was also caring, especially to her. Marinette blushed just thinking about it. A loud whoop to her right made her eyes widen.

A blonde with bright green eyes and wild hair was jumping rooftop to rooftop and she gaped. That…that wasn't her chat. Tikki had told her that Miraculous Ladybug and Chat Noir had to be synced and that was something she and Adrien weren't. This was the new Chat Noir. Ladybug swung her yo-yo and flew through the air. She could feel his eyes watching her and she smirked. Ladybug landed a few feet away and looked up into the moon. He stepped right next to her.

"Hi," his voice was breathless.

"Hello," she said softly. His eyes widened at her accent.

"You the Miraculous Ladybug…from Paris,"

"Yep!" Ladybug giggled and smiled at the new Chat. He smiled back and wrinkled his nose as he looked to the sky.

"I'm from Paris too,"

"Really?"

"Yep,"

It was quiet for a little bit before Chat turned to Ladybug. He tilted his head and she could tell he was trying to figure her out.

"You want to know who I am,"

Chat jumped at being caught and flushed.

"I-I know I'm not supposed to but…,"

"It's ok," Ladybug dropped her transformation and shook her head as her ribbons fell from her hair. Chat was gaping at her both in awe and shock.

"Wow," Marinette peeked at him and giggled.

"I'm Marinette,"

"I know," he answered, also dropping his transformation. Felix stood there with a smirk at her surprised look. "You almost killed me on the stairs today,"

"It was an accident!"

Adrien blinked in shock and felt hurt build in his stomach.

"W-Why?!"

"I didn't want to disappoint anyone else!" Marinette snapped angrily, trying to wipe her tears. Guilt hit target. "And besides, we didn't have any super villains to deal with…and I never expected to see him again,"

Adrien sighed and frowned.

"And you know what? Felix didn't care that I was Ladybug. He fell in love with Marinette! He is the first person to pick Marinette over Ladybug," Marinette sobbed, glaring at him. "Then you come and say all that to me! It's not fair! I want you to stop! I'm-I'm happy with Felix! I love him so much. He makes me happy. Don't you want me to be happy?"

Adrien stared at Marinette in shock and blinked as shame welled inside his stomach. She was right. He shouldn't have said anything. Adrien walked up to Marinette and hugged her tightly.

"I'm sorry,"

She started crying less and was sniffling more instead.

"I will always want you to be happy. If you want me to stop bringing this up then I will,"

"Please Adrien. I'm happy with Felix,"

"Of course. As you wish M'Lady," Adrien kissed her forehead and let go. Marinette wiped her tears and smiled at him.

"Thank you kitty,"

They walked out of the room and Adrien found Felix staring at them with his cold glare. Marinette walked over to her boyfriend and started talking to him softly. Felix finally looked away from Adrien and cupped Marinette's cheek, wiping her eyes and kissing her softly. Then the blonde dragged her to the dance floor and they started to awkwardly dance but somehow looked perfect together.

The next day Felix proposed.

Marinette said yes.

XXX

It was the day of the wedding. After one extra year of being engaged, Felix and Marinette were finally going to get married. Adrien sat near the front. Nino was Felix's best man as he was the first male friend Felix made. They weren't close like Adrien and Nino but he wasn't exactly close to anyone else. Alya was of course Maid of honor and Manon was the flower girl.

Felix was dressed in black, grey eyes scanning the crowed and hands nervously twitching. Suddenly, the music started and Manon practically skipped down the isle, spreading out the flowers. Alya walked along next, looking very beautiful in her pink dress. Rose, Juleka and Mylene followed, each in a lighter pink dress. Then Marinette. Her veil covered her face and her dress was long. It held her curves and was sleeveless. She moved up to the alter and tossed her veil back, Sparklez like the curing light flew behind her. Felix was gaping before a smile came on to his face. Adrien zoned out through the whole wedding and just stared at the girl who was finally kissed, with her ring.

That should have been me.

XXX

Adrien was sitting in his seat at the after party. It was in the Park and it was all lit up with beautiful lights. They hung from the trees and soft music was playing as people danced and ate. Adrien was nursing his second glass of wine and was wondering how many more it would take for him to not remember this day. His eyes found her at the dance floor.

Marinette was dancing with her head on Felix's chest and he was holding her tightly against him. He was protecting her from everything, something not even Adrien could do. He knows that they are perfect for each other.

It should have been me…

Adrien Agreste doesn't regret a lot of things but one thing is for certain. He regrets letting her go.

A/N: Done! I needed some guilty Adrien! I love this one thou! Ok so yesterday I went to the Louvre and it was so cool! I hate to admit it but I went to the Egyption part of the museum and regrettably have to say there is no such Ladybug and Chat Noir thingy. I was disappointed but other then that, it was really fun and Paris is so cool! Hope you enjoyed this! Byeeeee!