You are far too young to be feeling this way. From my experience you have a few options, the first would be to talk about the situation calmly, my situation has improved slightly partly due to my attitude change towards my relationship, I began to quite literally not give **** about it one way or another, my partner picked up on this and this lead to us sitting down and talking fully about it. ! The next option would be to just cool right off for a few weeks and see if that ‘physical space’ you give her helps. The next option would be for her to visit a doctor to make sure everything is ok hormonally, that said if she’s fine with the situation then that’s a big ask. The final option sadly is to call it a day and leave. But what you need to remember is that men 
and women are very different and throughout periods of their lives there hormonal balance changes, it flows and ebbs like the oceans. It is very difficult if the rest of your relationship is good, and also if it was sexual in the beginning, also every man and woman has a different physical relationship with each different partner, perhaps ask her about her past, can be tricky as our male ego doesn’t always like what we hear. Good luck with whatever route you take.
AngelOfDeath
LOL. She lied to you .The real reason her previous relationship ended was she was frigid and she realized she’d have to pretend to be interested in sex to get that COMMITMENT and MONEY that she really wanted. Men are starting to understand that women lie about liking sex because “buy me things and pay my expenses and get nothing in return” doesn’t work. Hence the MGTOW movement.
lucy l
what if the turn off is how he want be arouse ,only for him the sex act is all about him. I feel cheap and then don’t want to be touch any ,what you think about this I m post menopausal I could take it or leave i tried telling him and doesn’t hear me,How can fix that been together 31 year
Steve J
I’m so sorry to hear that, 31 years is such a long time, has it always been the same? The only answer is to talk, but people are not always honest about how they truly feel and don’t communicate well. We are tied between our human physical needs and our emotions, men and women are so often opposites. Not all men are the same. Your reply has made me consider how I approach my partner. I think my case is different I believe and hope the main reason for my partners lack of interest and low libido is the menopause, I hope her interest returns as her body settles and adjusts but who knows, what to do if it doesn’t I don’t really know as I miss the intimacy we had at the start of our relationship, perhaps women also need variety more than we think to maintain interest. What do you think?
I have been e woman and It was great before marriage and it’s had been getting less and less until we rarely have it any more , and she just ignores ever talking about it or going to counciling, Lately the bitching has gotten so bad that me and my 17 year old daughter rarely talk to her . For some many years now ,it’s like please be around and keep me company, but don’t touch me . And if you do something I don’t like you going to hear about it right now . Which seems like she complains about everything. I’m not perfect or my daughter but we both have been verbally abused so bad that we just can’t take it any more . My daughter w Has one more year of school and we are both out of here. We are both in counciling and that helps a lot dealing with it.