A/N: Better get your daggers and pitchforks out…

We immediately stopped kissing as soon as those doors burst open. Mark just stared right at me, as if he could see the thoughts swimming through my head. I cheated. I actually cheated on my three year girlfriend. I cheating on her with someone I've known for two weeks. I didn't know what to say, I couldn't say anything. So I just stared back, and tried my best to see the thoughts running through Mark's head.

"I got the ice!" Addison beamed as she walked up to Mark. "Everything okay?" she asked as she noticed Mark staring at me. Watching the scene from afar, I probably would've laughed. You had an awed Mark Sloan (aka: the hero) staring at a guilty Derek Shepherd (aka: the shoplifter), and a Meredith Grey (aka: the shoplifter's partner) looking down at her feet a few inches away from that jackass Derek. It was exactly like a scene from a movie, except I was the villain, not the valiant superhero who saved the day.

"Yeah," I chocked out, still staring right at Mark, who pierced his eyes right back.

Meredith shook her head then ran out of the room, pushing Mark and Addison out of her way.

"I uhm…excuse me," I said as I followed Meredith out of the room, but Mark blocked me.

"No, Shepherd…no." His face was cold and distant. He looked completely different from the Mark Sloan I thought I knew. His eyes were hard and dark, nothing like the light gray/blue they usually were. "Addison, let's go home."

She looked between the two of us, her eye brows cocked. "What happened?"

Mark shook his head. "It doesn't matter, let's just go."

"NO! I WANT TO KNOW WHAT HAPPENED!" I had never seen Addison explode like that before. She was the peacemaker, the pacifist. She solved the war, never participated in it.

Mark cleared his throat then looked in my direction. "I caught Derek drinking a shot of tequila. Since he's driving I didn't want him to be drunk."

I didn't think she would buy it, but to my surprise, she did. "Oh…well let's go."

As she turned to walk out of the house, Mark grabbed me by the throat and pushed my up against the wall. "WHAT THE HELL!" He screamed in my face.

I brought my hands up to my neck and tried my best to unhook his grasp. "LET GO Mark!"

"YOU DON'T TELL ME WHAT TO DO YOU CHEATING SON OF A BITCH!"

I punched him right in the stomach and he immediately let his grip go. "STOP Mark! STOP THIS! You are not completely innocent! I see the way you look at her, the way you talk to her, the way whenever she's around your body tenses, I SEE IT! I'm not an idiot. You love her! And I bet she's cheated on me before—"

"THAT'S WHERE YOU AND ADDISON ARE COMPLELEY DIFFERENT! She did not cheat on you Derek! Never, not once. I know she's unhappy, hell…SHE knows she's unhappy. But she has never cheated. And maybe you're right. Maybe I do love her, but she would never cheat on you with me. She's better than you Derek. And what, you've known this Meredith person for two weeks! You've had Addison for three years! Three effing years! You know how long I've had her? Never! And now you're throwing that all away for some garbage chick!"

"SHES NOT GARBAGE! YOU DON'T EVEN KNOW HER!"

He paused, his breath heavy. "Yeah, well I don't know you either."

Then, he walked away.

I stared up at my ceiling as I lied in bed, thinking about all the crazy events that went down at that party. Kissing, two fist fights, KISSING! I, quite frankly, could not believe it. Suddenly, I heard my phone ring. Mark? No, he would probably never call me again. Addison? Possibly. Meredith...? I quickly picked up the phone, "Hello?" My voice was horsed from the beer I had been drinking and my stomach ached from the fighting.

"Derek!" Addison yelled. "Oh my God…"

I sat up. Her voice was ranged with worry and fear. "Shhh, Addison what's wrong?"

"Oh my God," she repeated. "Derek you have to come back to Chris's house."

Chris's house? What was going on? "What? Why? Where are you?!"

Her voice quivered, "I'm here right now, Mark told me to call you. He went back there to pick up his jacket and he found police and ambulances…apparently someone went ballistic at the party and shot up the place"

"What?!" A shooting, this could not be happening!

She paused, a pause that felt like an eternity. "You know your old partner, Meredith?"

"Yeah?" I felt my breath hitch in my throat.

"She's, she's nowhere to be found."

A/N: First off, thank you guys SO much for the reviews. They are WOW!! And this chapter was sort of a filler so it wasn't that long. Second of all, yes Meredith is missing. Was she shot? Did she run away before she got shot? Did nothing happen to her at all? Well review and maybe you'll see…

Oh and if you guys will do be a big favor and check out my new story: Hate That I Love You...I would REALLY appreciate it!