Thanks everyone for the replies!
Manic Skafe, nothing crazy going on with the sister of the cousin, I'm not <i>that</i> screwed up!
I know it shouldn't bother me, but it often does. (By the way, I'm one of those odd people who dislike people saying my girlfriend is good looking (whether in a sincere way or just a guy-joking thing). I'm weird that way - I'd rather people not look at her at all than be jealous of me because they know she's good looking.) I think she's beautiful, and although I hate it, I get a lot of comments saying that she is, so I suppose when these sort of things happen when I'm with her, all I can think of is that these guys are trying in a small way to show me up.
I know I'm looking way too far into this, but this sort of thing fascinates me
