Would like some advice, My gf has friends that are gay male friends and it bothers me

I'm back for some more advice and since I received some good advice last time I thought I'd ask for more.

I'm 27 and my gf is 25. We've lived together for a year now and she has these 2 male best friends that she considers gay. She has messed around with one sexually when they were younger and supposedly before he came out. gay friend #2 hangs out with other females and has made out with her sisters and has also tried to get with one drunken night or something like that. This is all info that she says she didn't have to tell me and probably shouldn't have but it's too late now and it's in my head that maybe more might have happened but since I didn't handle this very well she won't tell me anymore if there is anything else to tell.

Here's the problem, She doesn't want me to talk to any female friends because she claims they are straight females and her male friends are gay. This has always been a battle between us and it seems that it will always be one. In 2 months she plans to go on a vacation with her family and it's suppose to be a family trip but the gay friend #2 will be going and I cannot be there, I'm very upset about this and told her if this is acceptable for her than she cannot expect me to keep this mutual respect of not talking to any of my female friends.

I have to get this out real fast. I cheated on her once a couple months ago and I confessed and told her she could leave or we could try to work it out. She stayed and we agreed to work on things and not talk to the opposite sex via phone ect other than work related things and stuff out of our control. She says that she can't trust me now because of me cheating and I can't talk to girls that are straight because of that but it's okay for her gay friend because he's gay. It's not okay with me and from the very begining after I found out that he kisses girls ect... I've not been cool with it and I'm not cool with her going on a vacation with her single bisexual best friend (bisexual is my opinion on him) she fights constantly that hes gay.

Another note is that she never wanted me to talk to my female friends even way before I cheated because she said she always thought id cheat and now that I have she really doesn't trust me.

She still has time to back out from the vacation and as I don't feel that's right either and I feel she does deserve to go on vacation with her family but her family wont make this man not go over her I have to just deal with it.

I have my vacation schedule for the following month after hers and now I can't go because she won't have the time anymore to go with me and I can't go anywhere because my family are my friends and she said I can't go with them without her because she's going with family and not just friends.

Advice would be very great