I ask my ex could I move in with her so I could help out with rent,but she has a boyfriend that comes over a lot even when I'm there and I can't say anything because its her apartment and I needed somewhere to stay.The problem is that she still wants sex sometimes with me when her man is gone.Oneday I went to pick her up from a bar and her man was gone out of town.well she got in the car she found a condom and started asking crazy question(she was drunk).when we got out of the car to go to the apartment she started kissing on me ready for sex and everything so we got in the room started having sex together like we had made up for lost time.she stills flirts with me and asks me question who I am talking on the phone or where I'm going.it shouldn't matter to her about that because we are just friends.I want to know what I she trying to do.Is she trying to play two fields or is she stiill caring about me or is she playing her boyfriend or what kind of situation is going on with her

Ever heard of having her cake and eating it too? She seems to be in control and you don't seem to have much to say about it since you need to be there.

Sounds like an open door policy, so you're free to walk out that door anytime you choose.