[It's easier to roll with the topic change instead of fumbling over reasons neither of them quite understand. They have an agreement about trust and about each other, and that's good enough for him.]

Pretty sure you'll take that back if I ever call you at three in the morning. [He's been known to be awake that early working on stuff. Best to give her that warning now.] But I'll keep that in mind. Same goes for you though. I mean I like the room I'm in but there's still a lot of places here I haven't checked out yet. [He sort of flaps a hand in her general direction as if saying work isn't that important.] And I'm pretty sure working at work is more like a heavily implied recommendation.

Ready to head back? [They both live in the residential area, after all. Just makes sense to start walking together until they have to split.]