Am I the only one offended that he slaps her ass in front of what I presume is a family Christmas dinner? x
Well no, but you have to remember this is The Doctor. Even if it’s a ploy, he’s an alien. Never been a human boyfriend before (or even at all most likely). He’s trying his best to look convincing, and well boyfriends do that sometimes. He doesn’t understand it’s not appropriate. Unless he’s trying to be inappropriate. We don’t know yet.