Ryan and Marissa went along with there normal routine. They got up around 7:30, Ryan took a shower and Marissa went downstairs starting the coffee and getting his breakfast ready. Once Ryan was out of the shower he got dressed, while Marissa made sure he had everything he needed for work. Finally they ate breakfast together usually in a comfortable silence, then they said there I love you's and good bye's and walked out the door. Marissa was on her way back upstairs to take a shower herself but stopped when she heard Ryan reenter the house. She turned and looked at her fiancé.

"Forget something?" she asked

"Seth's car isn't in the driveway" Ryan told her

Marissa got a confused look on her face thinking for a moment "They probably went back to his apartment for privacy"

Ryan nodded his head although he didn't look fully convinced. "I will go check Summers room"

"Thanks" he said and Marissa turned and went upstairs. She opened the door to the guest room that Summer was staying in and screamed "Oh my god" when she saw Summer cuddled up to another man. She then slammed the door and went downstairs but she was met halfway by Ryan.

"What is everything okay?" he asked worried

"Summer's here and Seth's not" Marissa said

Ryan got a look of dread on his face and Marissa continued "With another guy"

"Shit, I am gunna go check on Seth" Ryan said turning and making his way back downstairs

"What about work?" Marissa asked

"Well if our assumptions are right then I'm not going to get anything done today anyway"

Marissa nodded her head understandingly and heard a door open upstairs which she knew was Summers room. Summer walked out hand in hand with her guest, both Marissa and Ryan just watching. Summer's cheeks grew red as her best friend and her fiancé watched her with disapproving looks. They walked past Marissa, then past Ryan who looked like he wanted to attack. They reached the door and Summer gave him a quick peck but he grabbed her and pulled her closer for a more passionate kiss.

"Bye" he whispered after he broke the kiss then he open the front door and left. Summer turned and looked at the couple who were now standing side by side. Ryan had his arms crossed over his chest while Marissa hands were on her hips.

"I didn't know it would be that big of a deal for me to have a guest"

"It wouldn't be normally" Marissa said and Summer gave her a confused look

"So, what makes it not okay?" Summer finally asked when Marissa didn't continue

"Seth chose last night" Ryan informed her

Summer suddenly had a look of panic on her face.

"He waited for you last night to tell you" Marissa said gently

Summer suddenly bolted upstairs and Marissa quickly followed sure that Summer was about to break down. When she reached the room Summer was half-naked and running around looking for something.

"What are you doing?"

"Getting dressed" Summer said out of breath still running around now putting a shirt on.

"To go where?" Marissa asked slightly confused

"To go talk to Cohen and see if maybe I can fix this" Summer said now grabbing her purse and keys and walking past Marissa.

"What are you going to say?" Marissa asked following Summer downstairs

"I don't know, but I have to talk to him now before its too late" Summer said walking past Ryan who raised an eyebrow at her.

"I didn't know you could get ready that fast? He said jokingly

Summer flashed him a smile while opening the front door "Cohen was right he is the funny one" Summer then walked out into the California air putting on her sunglasses before shutting the door and going to her rented BMW and getting in then making her way to Seth's apartment.

Summer was pounding her fist into the door repeatedly "COHEN OPEN UP" then she waited. After no response she pounded her fist into the door again. "SERIOUSLY PLEASE OPEN THE DOOR" Summer yelled desperately. Still no response, she pulled her cell phone out of her purse and dialed Ryan's number.

"Hello" Ryan said into the phone

"Atwood, do you have a key to Cohen's apartment?"

"Yeah, but he keeps the spare underneath the plant to your left"

Summer looked to her left and saw the plant Ryan was talking about. "Thanks" she then snapped her phone shut and walked over to the plant, instantly finding the key and walking back towards the door and unlocking it letting herself in. She made her way to the bedroom and when she opened the door she noticed that Seth wasn't there and it looked like he didn't stay the night here either. She went back downstairs and looked in the living room, still no sign of Seth. Finally she walked into the kitchen and noticed three envelopes sitting on the counter. One with his parents name, a second addressed to Ryan and Marissa and finally one with her name. She picked up the one with her name on it and tore it open and began reading.

Dear Summer,

I don't think there are words that can describe how sorry I am. It took only seconds of seeing you with another guy to make me realize the hell I had been putting you through for weeks. I understand that this decision is the reason that I lost you something that I will regret for life. I hope he makes you happy because that is what you deserve. Happiness. Just know I still love you…I will always love you.

Cohen

Summer didn't even realize she was crying until the tears hit the paper. She swallowed the lump in her throat as a million questions ran through her mind. The biggest "Where did he go?" She picked up the other two letters and went to her car. She would find out sooner or later.

Once she was back to the Atwood-Cooper house she ran inside. She heard Marissa come out of the living room and Ryan getting up in his office.

"He's gone" she informed them then reached into her purse pulling out the two upopened letters. "But he left these"

Ryan took two steps to where Summer was standing and grabbed the one addressed to himself and Marissa. He began reading the letter out loud.

Ryan & Marissa,

Don't worry I will still be back to fulfill my duties as best man. I will be back two days before the big day.

Seth

"Where did he go?" Marissa asked

"I don't know" Summer said sadly sitting on the stairs.

"Who's the final letter for?" Ryan asked noticing Summer holding another envelope

"Sandy and Kristen"

Ryan came over "Can I have it?"

Summer handed him the letter and sighed. Ryan ripped this one open as well hoping it would answer his questions.

Mom & Dad

I am sure by now you have head the news. I want you both to know that I am okay but I just needed to get away for a little while. Some alone time to thing about everything. I haven taken Caleb's yacht out for the week. Yes he does know and yes I will be back for Ryan and Marissa wedding. Hopefully you all understand why I needed this if not then hopefully you will accept my apology.

Love,

Seth

"Well at least we know where he is" Ryan said after reading the letter.

"Yeah" Summer whispered standing up suddenly looking extremely tired.

"You okay Sum?"

"Yeah, I just need to sleep that's all" Summer then turned and began making her way upstairs.

"It's still not to late" Ryan offered

"How's that?" Summer said looking at him over her shoulder.

"He's coming back for the wedding. You can talk to him then and work it all out."

"I made him disappear, I'm sure talking will not fix anything" Summer said sadly

"If anyone knows Seth it's me and he left so that he could make sure that he made the right decision last night, that when he choose you he didn't give up something for nothing. All you have to do is reassure him that he made the right choice and he's yours" Ryan advised

"Wow I think that's the most I heard you talk" Summer teased with a small smile on her face

"Seth was right he's the funny one" Ryan joked back and Summer rolled her eyes then continued her journey back upstairs. Marissa made her way over to Ryan and hugged him the gave him a quick peck. "Since when are you so wise?"

Ryan just shrugged his shoulders "Just comes naturally"

Marissa laughed at him as she let him go playfully shoving his chest. "Go back to work" she said smiling while she went back to the living room going over the final details of the wedding hoping that Seth would stay true to his words and there would still be a best man.

A/N- Sorry for the long wait, I got caught up in the fun of Summer vacation and traveling. Expect more updates SOON.