A/N: For DeniseSB, I hope this answers your question about Addison's anger. :)

Chapter Nine: At Home With The Shepherds

When Derek and Addison had gotten home to the trailer, the instant he had shut the door behind them and turned to look at Addison, Derek knew he was in big trouble.

She was looking at him with such anger, her hands on her hips and it was radiating off her in waves.

"Derek, why?!" she asked suddenly, yelling at him.

He sighed and ran a hand through his hair. Turning away from her so she wouldn't see the overwhelming sadness that he had been feeling all day on his face, Derek walked to the kitchen.

"Why what Addison?" he asked back, his voice sounding tired and weary.

"Derek don't you dare play innocent. You know what."

Sighing again, Derek turned around and leaned against the small sink. Crossing his arms over his chest, regarded her with a blank expression while she looked at him with a hurt expression.

"Yes I do know what Addi. I saw her, so what?"

"You're kidding me Derek? 'So what?' Are you even serious Derek?"

He blinked at her a few times and shrugged slightly, "I don't need to answer to you Addison. It has nothing to do with you, it's between me and Meredith."

Addison was at a loss for words. He just could not see it could he?

"Derek, there is no 'you and Meredith' anymore. You're not even friends so how can there even be anything there left at all?"

Anger surged deep within him.

She has no idea what Meredith and I have…what we had.

"Not even friends huh?" he asked, his voice and expression turning hard. "Ok let's talk about people who aren't friends anymore shall we?"

Addison rolled her eyes and placed a hand her head looking away from Derek, "We don't need to being him up in every single argument we have Derek." She said tiredly.

"No Addison I think we should." Derek said harshly, glaring at her. "Let's talk about Mark because he and you aren't good friends anymore and, oh wait, he's not my best friend anymore either."

Addison looked at him with pain on her face, "Derek you can't always use him against me."

"Why not? Especially when you always use Meredith against me!" he yelled at her, angered to new heights.

"Well she is always the core of the reason that we fight!" she yelled back.

"Addison it's you who have a problem with her!"

"Well Derek you need someone to open your eyes to the truth that you choose not to see!"

"And what truth would that be Addison?"

"The truth that you picked me over her! You chose me to try and save our marriage and you are doing a bang up job of that aren't you?! No matter what I do, you are still mooning over her and aren't taking any steps showing that you care for…or even like me Derek."

He watched her with sad eyes as she stared back at him with a hard expression.

"Derek I came back from New York to try and get you back after you had taken off without a single word to anyone! I come here, find out that you have an intern for a girlfriend whom you weren't even honest enough with at the start to mention the little fact that you were already married! Then I offer you the divorce papers and I honestly thought that you weren't going to sign them. But low and behold, a miracle happened and Derek you didn't sign."

"And your point is?"

Addison made a sound of frustration and threw her arms up in the air. She turned her back on him and walked to their bed. Sitting down on it she looked over at him with anger.

"Derek what we have now is not what you would call a marriage, in fact it's not even close to a relationship."

Addison watched him sigh heavily and run a hand through his hair again.

Her temper was bubbling close to the surface of her skin. Why the hell couldn't he just say something?

"Derek why the hell did you pick me when you knew you were going to be so unhappy?"

"Do you wanna fix us Addi?" he asked quietly and Addison's anger quickly disappeared.

"What?" she asked.

"Do you want to fix us?" he asked again, now looking at her with a serious expression but his eyes were so sad.

"Yes Derek I do, but the real question is do you?"

He looked away, his lips slightly twitching and he closed his eyes as his memories of being with Meredith flashed once again in his mind.

Whenever he shut his eyes, she was there, smiling at him and laughing and surrounding his every sense.

"I chose you because it was the right thing to do." He replied quietly, opening his eyes and the vision of Meredith instantly disappeared. "You're my wife and I have to try and make it work."

Addison could not see his face but Derek closed his eyes again and smiled. Just the thought of Meredith was enough to make him smile, but now was not the time to live in the realms of his memories.

"Then why won't you do anything about it?" Addison asked with frustration.

Opening his eyes again, Derek sighed heavily and turned to look at her. A sudden anger raced through and he glared at her, "Addison, Meredith, my ex-girlfriend, the one whom I had spent a happy two month relationship with before you showed up, is going to transfer away in two weeks and people at the hospital have gone to great lengths just to ensure that I won't be able to see her! People as high up as the Chief of Surgery!"

Addison's jealous anger at the mention of Meredith raged within her and her expression turned into one that Satan would be proud of.

"Derek, Richard had specifically said to you stay away from Grey and what happens? I walk into a room and find you alone with her! What the hell were you thinking Derek?!"

Her expression was now infused with hurt but Derek couldn't find it within himself to find words to comfort Addison.

"I had to know why," he said, looking away from Addison and bowing his head to his chest.

He gazed at the floor and the anger drained away, allowing a wave of sadness to wash over him once more as silence fell in the trailer.

"Derek it is obvious why she is leaving." Addison said, her voice harsh and sarcastic. "She's leaving because she is leaving you! She is doing the thing that you could never do. You might have been able to leave me back in New York and come out here all by yourself, but when it comes to Meredith Grey, you can't leave her!"

Her words rung in the air and Derek finally looked at Addison, his face blank as he studied her exasperated expression.

"For god's sake, Derek, say something!" Addison yelled at him, her voice slightly breaking with emotion.

"I did leave her Addison." He said in a tight voice, getting off the side of the sink and walking towards his coat, which was hanging on the hook near the door.

In silence he started putting it back on but Addison had already guessed his intentions.

"Derek…" she started but was interrupted when Derek suddenly swung around and faced her.

"I left her Addison and look where it left me." He said with such anger and bitterness that she abruptly shut her mouth and watched in hurt shock as Derek stormed out of the trailer and slammed the door shut with a ferocious strength.

Addison listened as his car started and sped off, the gravel sent flying everywhere. She followed the sound of the car till it had travelled out of her hearing range and all there was in the trailer was complete silence.

Tears suddenly began to rise in Addison's eyes as the hurt she had been restraining all day crept to the surface.

Seeing Derek's face when she had walked through the door and had seen him, with his hand raised towards Meredith's shoulder, it had taken all of her reserve and self-control not to slap Derek's face and tackle him to the floor kicking and screaming.

She should have known better, no, she knew already.

She had known that Derek would have tried and corner Meredith, but Addison hadn't expected it to be so soon.

When Richard had assigned Meredith to her this morning, Addison had felt...triumph and victory.

She had had it all figured out.

Addison had had her own game plan to keep Meredith away from 'accidentally' seeing her husband, but when she had heard Meredith's reasons for wanting to transfer, she had known she would actually be keeping her husband away from 'accidentally' bumping into Meredith.

That knowledge had hurt her more than anything but there was still that hopeful bubble deep inside her that when the two weeks was up and Meredith Grey was finally gone and out of their day-to-day lives, that maybe, just maybe, there was still a chance that Addison could fix her marriage with her estranged husband.

But it was going to be a long two weeks to get there first.