Last week, I ran a session at Mount Vernon hospital which was aimed at the situation you are in, where a group of men discuss their issues and workarounds, and I lead the discussion to ensure it covered off a predefined list of issues. There is some talk of running it again somewhere else.
Can you say which side effects your husband is hitting, which hormone drug, and how long he's been on it? People here can probably help with some of them. Reading between the lines, maybe loss of libido is a significant issue? Also, there are some things he should be doing which he probably doesn't know about, because the urologists who put you on the drug never mention them.
Like Chris said, some counselling might be good, if you can find some.