Disclaimer - Don't own CSI or Nick, Greg, Warrick or Catherine. Or the song...that belongs to Matchbook Romance.

I wrote this a while ago an just found it, so I decided to post it. My first attetmp at slash.

Promise

Nick was staring at the computer screen in front of him. He was supposed to be running the prints he'd lifted from a desk, but he couldn't concentrate. Warrick had noticed his best friend acting weird all shift, so he decided to see if he could help. He walked into the print lab and pulled a chair up next to Nick, who seemed like he hadn't even noticed anyone else was there.

"Nicky...are you okay?" Warrick asked. Nick's eyes dropped from the screen to the floor. Tears were starting to build up in his tired eyes.

"No, I'm not." Nick said quietly. He stared at the floor and tried his hardest not to breakdown and cry.

"What's wrong bro?" Warrick was beginning to get scared. He didn't know what to expect Nick to say, but he knew it wouldn't be good.

"Everything." Nick choked out. He closed his eyes and a few tears fell. He took a deep breath and looked up at Warrick. The look in Nick's eyes made Warrick's heart sink. He hated seeing his best friend in so much pain and feeling so helpless.

"It's gonna be okay Nicky..." Warrick started, trying to soothe him, but was cut off.

"No, it's not. I fucked everything up. I...I was just scared, I didn't know what to do and now I lost him." Nick's head fell into his hands.

"Lost who?" Warrick was trying to mask his confusion, but it wasn't working too well.

"Greg. We were...together but then I fucked it all up cuz I'm an idiot and can't do anything right..." Nick couldn't hold it back anymore. The tears fell from his eyes, down his cheeks and collected in the collar of his dark blue shirt.

Warrick pulled Nick into a tight hug. He was getting more and more confused with everything Nick said but was determined to help him. "It's okay Nick...calm down and tell me what happened buddy."

"It's kind of a long story..."

"I'm in no rush bro."

"Okay..."

"Nick...when can we tell them?" Greg didn't understand why Nick wouldn't tell his friends they were dating.

"I'm not like you Greg...I'm just not ready yet."

"Are you ever gonna be ready?" Greg was starting to get annoyed. They had been seeing each other for a little over a month and Nick still wasn't 'ready.' When Nick didn't answer, Greg decided to push harder. "It's me isn't it?" Nick looked up at Greg. "You're ashamed of me, don't want people to know you're dating the crazy ex-labrat who's a CSI wannabe."

"Greg...that's not it. We're co-workers, and both guys. It's just a little complicated."

"No it's not, you're making it complicated. I love you and you love me, why is that so hard?" Nick looked down at the floor, avoiding Greg's eyes. "Nick...You love me right?" Nick was doing a good job of pretending his floor was interesting. "Look at me." Nick looked up at Greg and sighed. "What is this to you? What am I to you?" Greg wasn't angry anymore, but he could feel his heart breaking.

Nick looked back down at the floor and quietly whipsered, "I don't know."

Greg's eyes filled with tears. "What do you mean you don't know? It's been over a month...were we just fucking for fun?" Nick looked everywhere but at Greg. "Nick...you need to tell me. I can't be with someone who's ashamed of us."

"I'm not ashamed of us G. I just don't know what to do."

"About what?" Greg's heart was breaking a little more with everything Nick said. "A month ago you were all cute and happy we were together...now you don't know...don't know what Nick?" When Nick didn't answer, Greg gave in. He let the tears fall. "Nick, do you want to be with me or not."

Nick was getting irritated. He had had a long shift, and all he wanted to do was come home, curl up with Greg in his bed and go to sleep. But now he was being interrogated and accused...he was way too tired for all this and he knew he was gonna end up saying something he'd regret. "Greggo..."

"Answer the fucking question Nick. Do you want to be with me or not?"

"I guess not!" Nick yelled, surprising himself. That was it. Greg felt his heart shatter. The guy he had fallen desperatly in love with had led him on, only to break him down. Greg turned and left without another word.

"And I haven't talked to him since." The tears were falling faster from his eyes and he felt sick to his stomach.

"Then go talk to him." Warrick said. "It's been obvious to everyone for a long time you two are perfect for each other, we were just waiting for you to figure it out. If you're this worked up over loosing him, don't let him get away."

"He hates me."

"No he doesn't. He's just heartbroken."

"I was a jerk...he's never gonna wanna talk to me again."

Warrick firmly put his hand on his best friend's shoulder. "Do you love him?"

Nick looked up at Warrick. "Yeah...yeah, I do."

"Then you owe it to him to at least tell him so he knows. What's the worst that could happen?"

"You're right...I'm going to talk to him...it's his night off so he should be home." Nick got up and left the print lab, but as soon as he walked through the door he turned around. "Can you..."

Warrick cut him off. "I'll take care of the prints, and Grissom."

"Thanks." Nick turned and ran down the hall, almost knocking Catherine over.

"Where the hell is he off to?" She asked Warrick, who was smiling widely.

"To talk to Greg."

Catherine's lips formed into a smile of their own. "I knew it! Sara owes me 50 bucks. But why did Nick look so sad earlier?"

"They got in a fight, but I have a pretty good feeling everything's gonna be okay."