Disclaimer: I do NOT own any of these People. Although I may wish This is all fake. I do not own anyone from Grey's Anatomy, Anything.

Rating: R-Mild Swearing, Maybe Sex Later On..

A/N: I was REALLY Tired when I typed this, Just got back from a Really long shift, So don't Blame me if I have any Typo's.
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Chapter One- Betrayal

"NO! This is Over, ADDISON! I mean it! How The Hell could you do that to me?! With MARK!?" Derek Yelled

"No.. Derek. It's not what it look like. Please, Just don't leave.. We can work this out!" Addison Said, Trying to remain calm.

"No, We Can't." Derek Said "AND YOU!" He said, Pointing a finger at the now half-naked Man, Standing Sheepishly at the bottom of the stairs. "GET THE FUCK OUT OF MY HOUSE!"

"Stop, Man, It was an Accident." Mark Said.

Derek Chuckled Fakely, "And I'm just Presuming That your dick just 'Accidently' Fell inside my WIFE?" He said, Using air Quotes with his fingers.

"No.." Mark Trailed off.

"Then Get OUT!" He yelled, Mark Hurriedly Ran out the house, Grabbing his jacket as he went.

"WE'RE GOING TO WORK THROUGH THIS!" Addison Screamed, Trying to pull him away from his Suitcase.

"Get off Of Me, You make me Sick to even look at!" He said, Slamming his Suitcase shut and heading out the door, as he walked down the halls he reached over and yanked all of the pictures of them down, With Addison yelling behind him to stop. But he couldn't even register what she was saying, All he could think about was 'Betrayal, Betrayal' The words Echoing in his mind. 'They Took Vows, Till Death Do Us Part' He thought. He felt like he was about to throw up, Thinking of what Mark Did, He hands on her, all over her, Touching, Kissing. "NO!" He yelled, Trying to shake the thoughts from his head. He walked into another room, That was covered in Bright Green. He pulled put another small Suitcase and began filled it with clothes.

"Derek! No! What are you doing?!" Addison Yelled.

"I'm leaving, I'm going to Seattle. I got a job offer."

"Then Why are you Packing Jamie's Bag?!"

"Because, I'm not leaving her here with YOU. HA!" He said.

"But I'll Miss Her!"

"Like I care Now." Derek Mumbled. Slamming the Suitcase Shut and walking back into his room with it, He grabbed his own, along with his laptop and such, Then he remembered, A while ago, Like four years ago when they felt their marraige was going down the drain, They had Divorce Papers, He left the suitcases in the hall, went into his office and dug into the drawer, He pulled out a bunch of papers, they were held in a dark blue folder, He kissed them and got out his pen before she came in and ended up trying to convince him not to. Placing the pen gently on the paper he paused, Was it worth it? To just sign these papers and have it be over with? Right then and there? "Fuck It." He mumbled, Their Marraige was over, They wouldn't be able to heal after that. After what she did. He gently Guided the pen, Forming a perfect 'Derek Shepherd' Signature. He walked out of his office and Addison Was standing at the doorway.

"You did not.. Just.." She said, She Obviously had been watching him.

"I did." He stated, Shoving them in her chest, Grabbing his bags and starting out the door.

As he slamed the door behind him, Addison Sunk down, She sat in the hall, looking over the papers, Sobs began to erupt from her chest, The was a large 'D. Shepherd' on the paper, It was sloppy but it was there, there was glass and pictures everywhere from the frames breaking. 'He overreatced' She told herself. Then thought again 'No, He didn't, That's how you would've acted.' And with that she went downstairs, Pulled out a pen and Scribbled down her signature. She began to Sob louder and Louder, Realizing that he was gone, And probably not coming back, She got a blanket and pillow from the guest room and laid on the couch, Not Daring to Enter her room. She couldn't go into the exact place she had become an Adultrous Whore in.