Long time poster!
I've been invited by an old friends with benefits (man) for "dinner" with himself and his current girlfriend. FWB knew each other for years, and it never progressed (chiefly because I can't give time for a relationship at present). So it fizzled out but didn't end badly. For context, I am bisexual.
Anyway, I know this dinner is a bit more than dinner - this is to know his girlfriend "better". Now obviously that's not for him to decide or even me... but I suppose in the back of my mind is a bit of concern about her, that maybe he's pressurised her into this meeting, and whether she is actually okay with this. I suppose I can't know, and it may just be a fun evening, but has anyone had to negotiate similar situations? We are all grown ups of course.