(After Izzie discovers that she just slept with George)
Meredith: Wow, you and George were really going at it last night.
Izzie (chokes on the water that she's drinking): What?
Cristina: Well, all the laughing and the drinking... the music -- okay, you know what? Nobody, meaning me wants to hear George's rendition of 'SexyBack' at 3 in the morning.
Izzie (laughs, relieved): Ohh, yeah, you-- you should've just said something, or, or like banged on the wall, you know?
Cristina: It's like living in a youth hostel.
Meredith: Well, the important thing is that she and George made up. (looks at Izzie) You did, right?
Alex: I need to use your bathroom.
Alex: Because O'Malley's puking in mine.
Cristina: Okay, youth hostel.
Meredith: George is still here?
Izzie (nervously): Yes, yes. But only because he was too drunk to drive home, you know, like, totally impaired. Like no heavy machinery drunk.
Alex: What's her problem?
Cristina: Still drunk.
Alex: What's she doing here?
Meredith: She's afraid that she's ruining her engagement to Burke, so she's hiding from him.
Cristina: Not anymore. I have a plan. (in the background Izzie pops a mouthful of asprin) Burke doesn't want me to marry him just to appease him--
Meredith: Which you are.
Cristina: Sooo, we don't get married. It's simple. We go back to the way it was. Be kind, rewind. My plan has a name.