Dr. Derek Shepherd : What do you want Addison?
Dr. Addison Shepherd : I want you to care. I sleep with your best friend and you walk away. He comes here from New York and rubs it in your face, and still you get a good night's sleep. What do I have to do? Oh, I know. Maybe I should sleep with the vet, because that's what it seems to take to send you into a blind rage. But wait, that won't work either because I'm not Meredith Grey!