Grey's Anatomy Season 8 Episode 12

Julia: Love you.
Mark: See ya. (Julia leaves)
Arizona: 'See ya'?
Callie: Yeah. 'I love you, too' is the appropriate response to 'I love you.'
Arizona: Yeah.
Callie: Why wouldn't you--
Mark: We've been dating three months. It's way too early for that.
Callie (gasps): Oh, no. (waving her finger at him) No, no, no, no. (to Arizona) This is classic Mark. He found out Lexie and Jackson broke up, and now he's suddenly getting cold feet about Julia. (to Mark) You and Lexie are over, okay? That ship has sailed... and sank.
Mark: This has nothing to do with Lexie.
Callie: Uh huh.
Arizona: Okay, I'm gonna take Sofia to day care. Come here, honey. (to Sofia) Hello, my little baby girl. (kisses Callie) I love you.
Callie: Bye. (loudly) I love you, too.