My fiancee had a quickie with a person and would like to invite her. I don't necissarily mind that. I just mind the fact that the person to invite (we'll call her Jordan) was in a long term relationship at the time and still is. Jordan's girlfriend(whom she's cheated on) does NOT like my fiancee at all, and I really REALLY do not like Jordan at all either.
But my fiancee claims Jordan is one of her best friends, even though they barely talk and haven't talked in at least over a month. It makes me uncomfortable because Jordan is a 'serial cheater' and still wants to be with my fiancee(at least sexually, but stays with her girlfriend for money).
Jordan as a person I do not like, and Jordan as an ex lover of my fiancee I don't like.
Do I invite her or put my foot down and say no?
If I say no.. how do I tell that to my fiancee without upsetting them?