is this weird, or is it just me?!

I just sent out the email to the girls I would want to invite to my bachelorette party (went with July 31st, btw because i'm afraid having it only one week before the wedding would be stressful) and got a response from one of them saying that she can't because she's going to FH's bach-party ...

is it me, or is it super-weird that FH invited a girl (albeit a lesbian) to his bach party?!

it's not like they're THAT close (they see each other once a year!)