You and your boyfriend are talking to eachother, about random topics. Hair, being one of the topics, you bring up one of your friends little cousins who plays with your hair when he sees you. This makes your boyfriend a bit jealous.

"You let HIM play with your hair?" he says, sounding annoyed

"He's a child..and yeah, why?" you sound confused

"Because he's a boy, and your MY girlfriend." He's never been this jealous before, it's kinda attractive.