I feel bad about it but this is basically how I felt reading this.
Call me a pussy, or an oversensitive guy, but if I had a wife and she went through cancer and chemo, sex would be the last thing on my mind. I'd really just be concentrating on caring for her and all. I'd want to be close physically but not in a sexual way. As for getting off, I'd just rely on Freeones.
But whatever; I won't judge this guy. I really do wish the best for him and his wife, even though this post struck me as insensitive.