He takes a deliberate breath, and calms down almost immediately.

"Look," he says, hesitating. He's not really done this before, but he's seen a lot of the fall-out of people doing it wrong. "I'm not going to be upset if something makes you jealous. It-- doesn't have to be logical. And," he says, "as long as you're not dating anyone else I'm fine, but that doesn't mean you just... have to be."