Confusing Comments

I have a wonderful friend. When I first met her she said that if I wanted to sleep with a girl she would. I am a straight girl so that never happened, but we have stayed friends and she later found a bf. 
Recently she became engaged to that bf, but there was some drama where he became jealous of a guy she was friends with. She told me that he didn't get it; I was more of a threat to their relationship than the other guy. I don't think she ever mentioned this to him. They talked for a long time and I thought they had worked it out.
She introduced me to that same guy a while ago and we just decided to go further. She told me she had thought we would get along and any feelings she'd had for him were accidental. Then she told him that she has wanted to "do" me since the beginning and she is jealous.
Her fiance has since brought up his jealousy again, but I am not sure who it is really about anymore.  I want to confront her about all this, but I am also thinking I should let her and her fiance figure things out before I add more drama.
Opinions?