Disclaimer: I do not own One Tree Hill or Naley and i'm not making any money from this sadly cause i could use some lol

Hey guys, figured i might give this story a go. Hope you like it

So here is the basics. Everything that's happened in the show up to season four has happened in this story too except for the the whole Peyton/Lucas drama and Dan did not kill Keith

Takes place 5 years after graduation, flashbacks are in italic. Although the first paragraph starts off with Brooke and Lucas trust me it's 100 Naley

Pain On Pain

Chapter 1: My Heart is the worst kind of weapon

"I'm really excited about seeing everyone again" Brooke said to Lucas. They were currently on a plane from LA heading towards Tree Hill.

"Me too, we really don't see my mom and Keith enough" Lucas said as he looked at his beautiful bride to be.

"But I'm also looking forward to seeing, Deb, Mouth, Skills, Bevin, even Haley" Brooke said as she looked at Lucas, his blue eye's turned dark at the mention of Haley's name.

"Well I'm not planning on seeing her" Lucas told, his tone was harsh.

"Lucas..." Brooke said and then paused, this was a conversation they have had many times over the past five years, "She used to be your best friend".

"Used to be being the right words. That was then this is now" Lucas said before turning to look at the window of the plane. Brooke knew the conversation was over.

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"Hales wait up!" Lucas called to his best friend. Haley turned around and gave her friend her trademark smile.

"Hey Luke" Haley said as she smiled at the guy standing beside him.

"Hales this is Matt Brown, he's new here. Matt this is Haley" Lucas introduced them.

"Hey Matt nice to meet you" Haley said as she shook his hand.

"Nice to meet you too... Is that a wedding ring?" Matt asked her when he noticed the gold band around her finger.

"Yeah" Haley said with a dreamy smile.

"Haley is actually married to my brother Nathan" Lucas told Matt.

"Wow, married in high school" Matt said shaking his head with surprise.

"You make it sound dirty or something" Haley almost laughed. She was used to people odd reaction's when they found out she was married so young.

"It's just... Aren't you like worried that your missing out on experiencing, i don't know, different people and stuff like that?" Matt asked her.

"Nathan is the only guy I've ever been with, and he's the only guy i want to be with for the rest of my life. I think I'm lucky that i found the love of my life my first time around".

"That's cool" Matt laughed trying to rid the discussion of the tension that had been created

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"Brooke was so excited when i talked to her on the phone" Peyton told Haley as they cleaned up Tric. Peyton had stayed on at Tric after high school had finished. Karen had placed her in charge and Peyton couldn't have been happier she was working with music and living with Jake and Jenny, her life was good. Peyton had been angry at Haley at first. But when Karen had hired Haley at Tric Peyton got to see first hand how much Haley was punishing her self, how sad she was. Peyton couldn't stay mad at her anymore. She knew what Haley did was wrong but she also knew that Haley needed a friend.

"She love's wedding and this one is her own" Haley sadly smiled. She was happy for Brooke and Lucas but when ever some one mentioned marriage she couldn't help but think of her own failed one, and it was her own fault but it still caused her pain.

"You know, Brooke told me she was thinking about inviting you" Peyton told her.

"Lucas would be so angry if she did that. Tell her i appreciate the thought but i don't want to cause any more trouble".

"You never know Haley, it's been 5 years. He might be ready to forgive you now" Peyton said hopefully.

"You weren't there Peyton. You didn't see how angry he was. Besides i don't think i deserve it" Haley replied.

"Deserve what?" Peyton asked.

"To be forgiven" Haley simply replied as she throw out some empty beer cans. She smiled at Peyton regretfully and then walked away.

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"Lucas" Haley said as she walked into his bedroom.

"Haley... are you okay?" Lucas asked as he woke up from is much needed sleep. He looked over at his sister- in-law and noticed the tears coming from her eyes, "Haley what happened?"

"I did something tonight that i can't take back" She said as she crawled onto his bed and hugged him tightly.

"Shhh it'll be okay. Just tell me what happened" Lucas said in a soothing voice.

"I went out with Brooke and Peyton to that party, and we were drinking. I ended up losing them. Then i ran into Matt and we started to have this really deep conversation about life and love. I was so drunk Lucas..." Haley couldn't bring her self to tell him what happened.

"Haley what happened?" Lucas asked the concern is his voice was evident, "Did he do something to you Haley. I'll Kill...".

Haley cut Lucas off, "No he didn't do anything to me but Lucas... I slept with him" Haley said as she began to sob.

"What do you mean 'slept with him'" Lucas inquired carefully as he shifted away from her. He was hoping that they were having some sort of mixed up communication going on.

"I had sex with him Lucas" Haley almost screamed. Her eye's softened as she whispered her next words, "I cheated on Nathan".

"You..." Lucas was shocked he had no idea what to say, and then the anger hit him, "Haley what the fuck were you thinking. You are married. You are married to my brother. After everything that had happened, after he took you back when you walked away from him. How that fuck could you do this him. Tell me Haley cause i really want to know!" Lucas screamed at her.

"I don't know Lucas, i was drunk... And i was just thinking about how i had only ever been with Nathan, how I'd never experienced other people and how that was it for me. I don't know why Lucas. I love Nathan so much, so much that it hurts. I know that what i did was wrong, so wrong. I hate my self so much right now" She told him as fresh tears started to fall.

"Don't do that Haley. Don't tell me how much you hate yourself and then cry and expect me to tell you everything is going to be okay. You fucked up Haley. Do you realize what this is going to do to Nathan?" Lucas asked her. His eyes were demanding an answer.

"It would kill him" Haley whispered, "But maybe he never has to know" Haley looked up at Lucas with wide eyes hoping that he would agree to this.

"No Haley. I won't cover up for you, not for this" Lucas whispered before walking out of his own room.

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Nathan walked into his house slowly. He placed his key's on the table before looking over at his answering machine. It read '13' missed phone calls he sighed as he just walked past it and straight into the living room. He was tired from practice and wasn't in the mood to hear what other people wanted. Nathan was pre-occupied at the moment with dreading what his future held. In two days he had to hop onto a plane and go back to Tree Hill. He had promised him self five years ago that he would never go there again. But Lucas and Brooke wanted to get married there, and being that he was the best man he had to show up.

The night Haley had told Nathan that she cheated on him he had left. He got on a flight and just ran. Finals were already over and the only thing left was the actually graduation ceremony it self. He didn't need to be there and he didn't want to be there. He never wanted to look at her again. When it was time for collage he went to Duke, then he was drafted and now he played for the LA Knicks. His life was good and going home was the last thing he needed.

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Nathan was a little worried. Haley had gone to a party with Brooke and Peyton, she had told him that she would be home at one the latest. It was now almost four. He had tried her cell but it was turned off, same with Peyton. Brooke's phone had recently been in a water related incident and wasn't working, but he still tried it.

When Nathan heard keys in the lock he jumped up, "Haley are you okay" He asked his wife as she waked into there home.

"Not really" Haley answered him honestly. Nathan walked up to her and hugged her tightly. She hugged him back just as hard, afraid this might be the last time he would give her such an embrace.

"What happened?" Nathan asked. She looked horrible and he was really worried about her.

"I'm scared" She answered as a tear ran down her face.

"Why?" He asked her, his concern growing bigger every second.

"I'm scared that your going to leave me" She said softly.

"I'll never leave you" He replied softly in her ear. Haley backed away from him, when she saw the confused look on his face her heart began to brake.

"You will, after i tell you something" Haley said as her eye's started to roam the room. She couldn't look at him. She refused to look at him while telling him something she knew would destroy him. She didn't want to see the look in his eyes.

"Tell me what Haley" when she didn't answer him he got even more worried, "Okay now I'm starting to get scared".

"I... I slept with someone tonight Nathan, Matt, i had sex with Matt" She blurted out quickly and the added, "And i am so sorry. I love you so much. Please don't hate me and please I'm begging you, forgive me" She was crying hard now.

"You what?" Nathan asked in a tiny voice. He couldn't believe what he had just heard. She had sex with Matt. He backed even further away from her until he hit the wall with a loud thud.

"I'm sorry, i don't what else to say. It was a horrible mistake, i know that. I didn't even enjoy it. I will do anything to make this up to you Nathan, anything" Haley said as she started to step towards him but stopped when she saw him try to move away.

"Make this up to me Haley... You had sex with another guy. You can't make this up to me. After everything we have been through... How could you Haley" Nathan said as he felt tears running down his cheeks. He hated crying, Dan had taught him to believe that crying was a weakness. But Nathan didn't know what else to do. He walked away from her and headed towards there bedroom. She didn't follow him. He grabbed his bag and packed as much stuff into it that he could before heading back out to where the woman that had just crushed him was.

"Nathan, please don't go" Haley begged when she saw Nathan's bag in his hand.

"What did you fucken expect Haley. That i would kiss you and tell you that it was fine. It's not fine Haley!" Nathan yelled at her.

"Nathan, please. I know that you are angry. But i made a mistake. Can we just talk about it".

"There's nothing that you can say. And I'm not angry Haley, I'm heartbroken" Nathan said with pain as he took one last look at her before walking out the door.

TBC

Okay there it is guys Chapter 1. This is my first OTH story so please let me know what you think and review