"Yeah?" Rose arches her eyebrow at him giving him her 'not buying your bullshit' look. "'Cause I'm human and not clever enough. Not a brilliant genius like you and the Master? 'Cause it doesn't have anything to do with the whole enemy thing. Doctor, if you think I wouldn't understand enemies and revenge you have never been a teenage girl in the upper classes."

Okay well it goes without saying that he hasn't been. Plus it's kind of silly and maybe it'll relax that whole cold thing he's got going that she hates when he does. Of course she doesn't hate it that much. She's not moving away from him.