I have to agree with the idea that your H probably needs to learn how to ML. My X had never been with anyone before our marriage. The sex was good but got boring rather quickly. I honestly didn't realize just how boring until after the divorce and now I'm in a new relationship. My new partner was single most of his life and has a lot more experience. Basicly, he knocks my socks off!
It sounds like you guys really have a good chance of making this work. You sound willing, it sounds like he's a decent guy who loves you. Get some professional help....
Gigi
"It's not what happens to you, it's what you make of it." Zig Ziglar