A/N- So! This is my very first fanfic! I'm really excited about it! I know most people say, "It's my first story! Don't be mean!" but because its my first story I want you to be mean! Well. Maybe not mean, but I want your feedback, good or bad. Especially if its bad because that gives me something that I can change and make better. Review or message me with your criticism!

I do have the first four or so chapters planned. Each chapter isn't just out of the blue. And by the time I get around to chapter 5ish I plan on having the rest of the story figured out from there. If you aren't interested enough to continue reading after this chapter, I ask of you: wait till chapter three. That's when it gets interesting (;

Rating: T and some will probably be M later

Summary: AU. A Slexie story. Title based off of the song Unwell by Matchbox Twenty. Takes place following 7x19 after Callie is discharged from the hospital. Lexie was there for Mark when he needed her. Will he be there for her when she needs him? I'm really no good at summaries... I suggest reading to find out more.

Disclaimer: I don't own Grey's Anatomy, ABC or any affiliated companies. If I did, I sure as hell wouldn't be wasting my time on this.

CHAPTER 1

Lexie sat on a stool in the kitchen watching Meredith empty the contents of the liquor cabinet on to the breakfast table. "What are you doing?" she asked curiously.

Meredith looked over at her sister. "Well, there is about to be a party here isn't there?"

"Yeah. A small yay-Callie-and-her-baby-didn't-die-party. Not a let's-all-do-shots-and-get-super-drunk-party..."

"This is the Grey house. In the Grey house, every party is a let's-all-do-shots-and-get-super-drunk-party." she replied in a mocking tone.

"Yeah... Why is the party gonna be here anyways?" Lexie asked as she sub-consciously walked to the other side of the kitchen and helped Meredith unload the tequila and scotch. "I mean, of course we're all happy she's okay, but no one in this house is that close to Callie."

"Well, it was Mark's idea to have the party, but he was worried that his apartment would be too small for it, so Derek offered up this place. I guess he's felt bad because of everything Mark's been going through lately." she explained as she closed the now empty cabinet.

"Ugh. I forgot that Mark is gonna be here." Lexie said, slouching over the kitchen counter.

"What's the problem with that? I thought you and Mark were being civil now and, more importantly, that you and Jackson are happy."

Civil, Lexie thought, Is that what you call not speaking? I held him in my arms while he cried and caressed him as slept in my lap and then as soon as Callie looks like she's gonna be okay, he runs off and doesn't talk to me for three months. It's not like I'm jealous. It just seems like we're always either together or ignoring each others existence. Wait. Don't jealous people always say they aren't jealous? Oh well. I'm not. I'm not jealous that he'd rather spend all of his time with his new happy little family... Why would I be?

"Yeah. We are. It's just that I can only stand being in close quarters with Mark Sloan for so long." Lexie said shortly, more to herself than Meredith, as she walked away.

Lexie loitered around the party, bored. She had been relieved when there was no sign of Mark for the first hour or so, but she was tired after a long day and wanted nothing more than to fall asleep in her bed. "I'm gonna go get a drink." she told Jackson.

"You already have one..." He pointed to the beer in her hand.

"I meant a real one." she said as she walked to the kitchen.

Just my luck. She thought as she looked over to see that sitting by himself at the counter was the man she'd been trying to avoid for the past hour. She tried to back out of the room, but he already seen her.

"Hey." she said quietly.

"Hey."

"We, uh, haven't talked in awhile." she said as she made her way to the tequila, looking anywhere but his piercing blue eyes.

"No. We haven't."

You could cut the tension in the room with a knife.

"You're missing the party... Wasn't it your idea?" she asked as she sat down next to him.

"Yeah... I just need to get some things of my chest first," he said, as they made eye contact for the first time in weeks. They found their eyes filled with the same emotion. Sadness. They were supposed to be happy. Lexie had Jackson and Mark had a beautiful daughter, but they both just felt like something was missing. "I just wanted to say thank you for being there for me. You know. When we didn't know if Callie was gonna be okay." he said as put his hand on her arm.

She got shivers at his touch. "Mark. You don't have to-"

"No." He cut her off and took her hands in his. "I do. You were there for me. After everything, I put you through. You were still there for me. Lexie. I want to make this work. The way I feel about you is not gonna go away. I've tried to get over you, but time and time again, I end up in the same place. I love you. I always have. I always will."

She sighed and pulled her hands away. No. I'm with Jackson and I'm NOT going to screw it up for something that I know will never work. They had tried too many times. As she stood up, she said "Mark, you-"

Out of the corner of her eye, she saw for the first time that Jackson was standing in the doorway. She didn't even know what to say to him. This must look so much worse than it is. "Jackson." was all she could manage.

"You've got to be fucking kidding me!" he yelled as he stormed out of the room and upstairs, through the party. Lexie chased after him, leaving Mark alone again in the kitchen.

"Jackson! You have to listen to me!" she yelled once they were in his room. "You have it all wrong. Mark did just tell me that he loves me, but I wasn't gonna say it back. I was gonna tell him that I want to be happy. With you!"

"How do I know that you're telling the truth?" he asked, staring at the ground, fuming.

"Because I'm here with you. Not downstairs with him." she said as she stepped forward and kissed the tender spot on his neck.

"Lexie." he sighed.

"I'm here. With you. And we're all alone. So we can enjoy this... or go back down stairs to the boring party." she said stepping away.

He slipped his arms around her neck and kissed her.

Back downstairs, the party was going on with very little chatter. They had all watched Jackson and Lexie storm up stairs and had heard some yelling that had gone quiet. Leaving an awkward silence that now filled the air. Mark stepped out of the kitchen into the living room, as Callie approached him.

"What just happened?" she whispered so only he could hear.

"I told Lexie that I still love her and Jackson walked in. He heard everything." he whispered back.

"Again? Mark you two are like each other's kryptonite. You have to get over her!"

"What don't you understand?" he shouted. "I'm NEVER going to get over her! NEVER!" He didn't even care that the whole party heard.

Derek stepped in. "Alright, alright. Let's calm down, Mark."

The awkward silence resumed, but was soon filled by the sounds of moans and banging against the walls upstairs. Mark's eyes filled with jealousy and pain. Knowing Lexie, they're about to get much louder, he thought as he grabbed his jacket and stormed out the front door.

Jackson was on top of her thrusting and it felt good, but her mind kept wandering. Mark just told me he loves me. And here I am with Jackson. Something about that seemed so wrong to her. The sex she was having with Jackson was good and all, but she could help remembering the sex with Mark, which was so much better. She closed her eyes as her orgasm drew closer, almost forgetting where she was.

Why, why? Why? Cant I stop thinking about-

"MAAARRRK!" she shouted when her orgasm finally hit home. Her and Jackson froze instantly. Oh my god. I can't believe I did that. Fear shook through her and tears sprung to her eyes. How did this happen? There was no way to explain this to him. I was just distracted. I didn't mean it. Oh god. Oh god, oh god, oh god. The room was so quiet you could hear a pen drop.

Jackson suddenly jumped off of her, anger practically spilling from his pours. "Get out." he seethed. She sat there frozen in place. "I said get out! Get out! GET THE FUCK OUT!" He pointed to the door as she scrambled for her clothes. Lexie threw on her shirt and underwear and raced down the hall to her bedroom, but not before looking up at him and seeing what she was really feeling. He was on the verge of tears.

"I'm so sorry." she whispered before she ran out of the room, down the hall and into the attic crying silently.

I hope you liked it! Review please! Even if you hated it! I'm dying to know what you guys think so far! Also, please tell me if you notice any grammar errors that I'm consistent with. (: