A/N: Thx everybody for reviewing and I'm really glad you're enjoying the story so far. Be warned, this is only the first of two parts so once you reach the end, don't worry because there's going to be a sequel. Oh and, you still got some chapters to come, I'm thinking two or three more updates. Thx again for your input, all and any ideas, requests or criticisms are welcome - as long as there's something constructive to it. Enjoy!

Seattle

Outskirt Area,

Late Afternoon

"That is so ridiculous I don't know what else to do but laugh at you," Addison remarked.

"Then why don't you?" Mark countered but all she managed was a nervous chuckle that sounded strange even to her own ears. It's just too absurd, she established in her mind, realizing her hands were clenching the steering wheel just a little too hard.

"Well?"

"Oh, don't be an ass, Mark," she retorted.

"Interesting. I make you tell Derek the truth and you're mad at me. I ask if you still in love him and I'm an ass."

"You were an ass before that," she cut him off. "And I'm not in love with Derek. God knows I was and it still hurts to say it but we're over."

"Over?" Mark exclaimed but again she cut in before he could go on.

"What are you up to, Mark? I mean, you come here uninvited, at first," she quickly added at the side glance he gave her, "you tell me you want me back and that it meant something to you –"

"That's a way of putting it."

"And the moment I turn around you're hitting on every needy doctor in the hospital –"

"Only the female ones," he cut in, "and including you."

"Including Meredith Grey," she continued. "Are you just trying to make everybody's lives even more miserable than they already are or is there actually some bigger scheme behind it all?"

"Not everybody's miserable, Addison."

"Oh, it's just me?"

"And you didn't have to be," he nodded.

Rolling her eyes Addison stared through the windshield. She had to hold her breath not to scream.

"I really wanted to make it work, Addy," he said, his voice having that longing touch to it again. His bedroom voice.

"I can see how hitting on Meredith is the way to go," she mocked.

"That really makes you jealous, doesn't it?"

"Oh, get over yourself, Mark. I just don't get what everybody sees in her." Liar! Of course she knew. Besides the obvious, Meredith came with no baggage, which she was sure had sealed the deal for Derek. And as far as Mark was concerned – well, she wasn't sure. "I mean, is it just that you're so attracted to her you can't help yourself or is it because she's another woman you can steal away from Derek?"

"I didn't steal you away from Derek," he remarked with obvious dismay.

"Yes, you did. I was just stupid enough to let you."

"You just need me to be the bad guy, don't you, Addy?"

"You knew our marriage was at a deep end," she hissed. "You knew I was vulnerable and you took advantage. I'm not saying I was innocent but you certainly weren't."

She waited for his comeback but apparently he was fresh out of them.

"I can't even blame you," she added, "I knew who you are, how you are… On second thought that's probably why I let it happen in the first place," she realized. "What better way to get back at Derek and get his attention at the same time and have the added bonus that I was sure you'd lose interest very quickly."

"Except I didn't," Mark finally found his speech back.

"I believe that you're interested, alright, just don't try to tell me again that it's more than that," Addison rolled her eyes.

"What if it was?" he dared her in that tone that allowed him to sound serious but turn it into a harmless joke just as easily.

"If it was I'd have to tell you – again – that there's no way because I don't feel that way about you. But since it isn't…" she trailed off.

"Fair enough," he shrugged and she glanced at him skeptically. "So, if you're not jealous of Meredith because of me," he mused aloud. "It couldn't be because of Derek, could it?"

She uttered a frustrated growl. "I swear I'm going to scream!"