I also enjoyed my husband sexually more than he did/does me. I have always wanted more sex with him. I have been told 'no' more times than I could count. That all hurt deeply, but to have him go and give it to someone else is torture.
Girl, I experienced EXACTLY this same thing. I think this is one of the things that hurt me the most. For me, it's helped a lot to get my body back into shape, to feel sexy just being ME--OW's got nothin' on me now, so I don't worry about that anymore. Even better, H has noticed, seems to appreciate it, and our relationship in this regard is 1000 times better than it was before.
