Ummmm, I really don't know that it is your business. He has to live with it, so it really is up to him.
When I married my dh, he tried to be very controlling to me. He had reason to be concerned as he had lived a not so honest life and thought everyone else was that way.
We worked our way through it and now are happy and comfortable. I can even make comments about his friends now and he takes them as they are intended instead of just blowing his top and getting jealous! However, if I had written him off before, we wouldn't have had 20 great years and 2 beautiful children.
Hard, but doable. Everyone has their own burdens.