Izzie: Okay, it happened. It was a mistake and it happened. People make mistakes. We need to figure out were we go from here, we need to figure out how to tell Callie.
George: I'm not gonna tell Callie. Do you know how much this would hurt her? I'm not gonna clear my conscious at her expense, she's done nothing but support me, encourage me and believe me, and this is how I pay her back? No, I'd have to live with what I did. This is our secret, okay?