So I have one person who is......

Trying to invite her and her husband to our wedding....shes a friend of my FMIL....FH doesn't like her, neither do I to be honest and there's not enough room on the guest list...she's the only person who's come right out and said, I'd better be invited, I've known Guy since he was big, I could care less about that, in 10 years, I've seen her like 5 times and I really don't want to invite her over someone who I know and care very much about....anyone else having a similar issue?!?!?