Interesting. Honey and I have sex quite often, but he takes care of himself as well, and vice versa. For us it has always just been an issue of needs not meshing with time constraints, or wanting the different experience, not a question of spouse-need or betrayal. Does he feel this way about his own activities, or it because you are the woman? He may be one of the few who never does it alone, but although I've heard they exist, I've never seen an example.
No offense. It is nice to have a discussion about grown up things without people rolling their eyes at you.