I'm 39 so it sounds like I have a few years on you, but I'll share with you my opinion/experience. When I was younger, I had endometriosis so bad it hurt to walk, so imagine how bad sex hurt! Even after I had treatment, I just didn't want to, no desire. My husband (now ex-husband, but not because of that, just because I'm an idiot!) used to tell me that if we could never make love again it wouldn't change a thing. Sex is a wonderful way to express love with your significant other, but there are other ways besides intercourse. Hopefully you can talk this out together and find a way to satisfy you both and help you believe that just because he doesn't want to make love it does not mean there is anything wrong with you, it does not mean you aren't desireable to him or anything. Keep the faith.