I've just about had it, about 5 years ago I had an affair, and have let 12 different guys have sex with me, and loved every manly minute of it. I still fuck my husband and "she" still fucks me. I really like having a real man on top of me though.
maybe you need to bring your lovers home and let them fuck him too...
he probably would enjoy some hard cocks too.
Tell him you are poly-amorous and need a fulfilling relationship with men, as well as with a woman. On second thought, why not just file for divorce and get some while you're still relatively young?
I made the same slow transition your husband did. My girlfriend is very much into it, shaved her head, wears men's clothing, has 2 strap ons for me. I do take care to fulfil the man's role regularly and give her a brutal fucking, just to make sure she won't turn away from me. I know she needs to be treated like a woman or like a little girl sometimes.