Chopblock

I'm going to venture several guesses from personal experience, given the lack of information here.

- Is she having any self-esteem issues? If she is upset about her image, it won't change until SHE decides to change.

- Are there major life changes going on? Be careful with this one cuz there is ALWAYS something else around the corner. I saw my gf through school stuff, job stuff, personal stuff... always thinking "once this is done, she'll be relaxed". Its a pipe dream. People who use life as an excuse are ALWAYS going to be upset about this and that. They have lots of growing to do before they are ready for a relationship.

- She just isn't that in to you anymore. Sorry, but its a possibility that must be considered.

- Too much pressure: if you are begging (I've begged, bargained, paid, pressured, waited...) then she is just going to associate sex as "one more thing I have to do for someone else".

- Whats in it for her: another factor, is it "always about you"? What does SHE enjoy, and can you give that to her?

- She just doesn't care about sex: another ugly factor to consider, but a serious possibility.

I feel like I've tried almost EVERYTHING, and the only thing that ever has any margin of success across all these situations is for YOU to work on YOURSELF. Rekindle hobbies and interests, reconnect with friends, establish yourself as a happy person. If you are happy with yourself and love yourself, then its easier for others to love you. If she is feeling trapped, like she has lost her identity, this may give her a breath of fresh air.

Best of luck.