Well, he's adjusted quickly. But honestly, that does seem just about right for old freinds—"woah, you're doing what now? ...Oh, okay."
In a lot of ways the protagonist is acting a lot more like an actually-straight guy right now, than the usual pointedly-"straight" straight-man characters that these series often classically have had.
Which isn't to say that he's straight, of course. That remains to be seen. u.u