He hesitates, which gives away a lot in itself. He laughs dryly as he realises that, and spreads his hands. "It scares me shitless. The idea that he'd be doing it, at least in part, to be with me - I mean, obviously a lot of it is about being with you but... Just, the idea that he'd be prepared to go through all that, risk all that, to be with me - or us, or whatever, that's not the point - forever. And that he'd want it to be just us forever. That's..." Okay, just say it. "That's terrifying!"