Well after reading your message I had to wright something back and tell your what I was thinking. This is from my side of things and in no way is this to tell you what to do, But. I think your hubby is gay or is going through some kind of mid life change or just does not want to be with you that way. If you asked him about love he would probably tell you that he loves and does not want to leave and he is probably telling the truth.
But he is ok with what it is and that is comfort for him and safe.. But you need to get your feelings out and get them heard. Love is like A muscle and if you don't work it out it goes away!!!!!!!!!