Meredith: We need to go talk to Izzie.
Cristina: No, we are not talking Izzie into having surgery because your future husband is mad at you.
Meredith: But he has a right to be mad, because we didn't talk Izzie out of surgery as her doctors, we did it as her friends.
Cristina: Our job as doctors is to present the options, answer questions, and let the patients decide the course of treatment. That is what we did.
Meredith: Right. Except I may have presented her options as, "You're having this surgery, over my dead body!" He has a right to be mad.