Have you considered he may be asexual? I am in exact same boat as you. I am in my 50's , hubby in 40's, he is just not interested. I am climbing the walls with frustration, and grieve for my previous very good sex life, and the thought of never having sex again in my life drives me to tears, like you even watching intimacy on film/tv upsets me , makes me jealous, reminds me what I am missing. Our last conversation about it a few yrs ago ended with him saying "I will try and make an effort to want sex" but as we all know, the thing is to be desired, wanted, lusted after, if they are only doing it as a chore, I would rather not bother. I have come to the conclusion he is asexual (he thinks he is autistic). All the signals were there from day one, but I had never met a guy like him with no sex drive and thought it was because of lack of experience, like yours, previous gf same story. Stupidly I just thought I could teach him, now realise of course, nothing to do with not having the knowledge/skills. The drive and motivation simply do not exist. He is not gay, or having an affair, 100% sure. This is how it is. Like you I am in a quandary about what to do as he will not even discuss it either without getting upset. So we just ignore the elephant in the room, no sex, no intimacy, no hand holding, no kissing, no cuddles, nothing. I go for a massage just for some human contact. How to feel so alone when married. Sex is much more than the act, it is about intimacy and being close together. Oh and those who suggested sex toys/masturbating etc if you do it too much it ceases to work = more frustration! So NOT the answer!