I'm 30 and my sex life died a few years ago. My husband just isn't bothered and doesn't want to believe there's anything wrong with him so he won't get help. He is impotent and has no libido, but he blames me and says if I 'wasn't horrible' he would want to do it. I know this is just a tactic as he has a history of denial when it comes to health and mental issues.
That aside, even with no sex it would be difficult for me to leave because of finances. I would rather live a monk's life than struggle (and I would struggle). It works both ways - we need each other financially to pay the bills.
So I have to face the facts that I'll probably never have Sex again, and never have a family (that has been hard but I think I've finally got to the stage where I no longer picture a child in my life). Surely I can't be the only one living like this - I tell myself most relationships die after a few years and not many couples actually like each other much, they just tolerate each other for convenience. I don't know many couples who are actually happy after 10+ years.