love it. she owns a bar, right? maybe he hangs around, drinking just enough that she can't kick out a paying customer, but looming enough to make his point. (he'd be likely to stop by anyway, just to make sure everyone's playing... if not nicely, then at least subtly.) so even if he's the kind of person she'd get along with normally, there's going to be friction there because he's big brother-ing here all kinds of ways and he's a few years younger than her, for pete's sake.
i love your pb choice, btw, can't believe i didn't say that before!