When we first met my was really into sex. My stamina seemed to be the only thing that would stop us. We have grown extremely close in the past 4-5 months and we are now very in love. We have even discussed marriage and our time spent with each other has doubled recently. The problem is, our sex life has completely gone downhill. She never wants to have sex anymore and I literally have to ask her in order to have sex. I probably spend about 4 of the 7 nights of the week with her and we probably have sex 2 of the 4 nights with me having to practically ask to her have it. The other 2 nights, I'll try but basically get shot down. It used to be that we had sex every night and she would literally wake me up and make me (not that I didn't want to) have sex with her in the morning. She used to like having/giving oral sex and now won't let me touch her with anything other than my penis and she hasn't voluntarily licked me. When we do have sex, its one and done with her not wanting any more where in the past I'd be lucky to get a 5 minute break. I know that I please her when we do have sex and she climaxes 99% of the time (I think twice ever I haven't done the job, and she is very honest). I know she is very attracted to me, tells me she is and tells me she loves having sex with me. I asked her in a serious conversation what the deal was and she told me that it has nothing to do with me, that it has to do with her. She has had some very minor health problems of recent with her kidney and has been under a lot of stress just with work and life. She recently has gained about 5 pounds and is all of a sudden extremely self conscience and has been very depressed/stressed. She has openly talked about this and said that all these factors have contributed to her not wanting to have sex. I spent 3 nights straight there and had sex with her 2 of the 3 nights, we weren't going to see each other tonight because I had plans and then I am going to spend tomorrow and Sunday with her as well. Tonight we were talking on the phone and she said "guess what I just did," then went on to tell me she had just masturbated while watching porn. She has masturbated a few times in the past and openly told me about it (because she isn't very shy) and I'm perfectly ok with it, but I find it very strange that tonight she felt the need to masturbate. It upset me and she doesn't really understand why. I really don't think she is cheating on me, however I have my suspicions. What should I make of this situation and is there anything I can do to make the situation better and get my old sex life back????