to tell you the truth your husband sounds like me. and im only 22 years old. You really need to look at the things you may not be noticeing, I myself think i have a touch of depression and other things that i have yet to admit. I used to be very sexually active with my wife when we first met, up to several times a day, now shes lucky if she gets me 1 time in a 2 week period, and with a future baby on the way it seems im even more hesistant on showing emotions, and let me explain why i think the way i do.
Recently i have come into alot of Stress in my life, alot of self-doubts, and i have to keep reassureing myself things are gonna be ok. if hes anything like me, he prolly likes to just stay home when he gets home from work watch tv and jump on the computer, almost anti-social in a sorts, Doesn't want to really "Go out" and do things. And when my wife approaches me for some loving or affection its almost an annoyance, even though i love her so very much , my sex drive has almost diminished. His lifestyle in his mind is changeing dramatically, hes thinking what is diabetes gonna do to me? Whats gonna happen as i get older? I think its starting to set in stresses of age and life.
To make this long story shorter i think its mainly stress and a touch of depression the guy prolly has a ton of stuff on his mind and his way of getting away is to not think of things, like watching tv/playing games/getting on computer. But when hes being affectionate its sparking up his emotions and he gets overflooded with all kinds of thoughts and fears. I know this is really kind of scattered way of looking at it. But i don't think its you "Specifically" i think hes just worried about alot of things and he goes to his comfort zones.
Just to add, when i say my wife approaches me for affection and it annoys me, its not prolly what your thinking, When i watch tv or do something to just go away in my own mind to either think or not think, im best to my own devices alone, so when im concentrating on "just getting away lost in tv land" someone who breaks me from that comfort weither it be my wife or a good friend is almost like a person who keeps talking in a movie theater, You just want to be there watch the movie and you don't wanna hear about other things at the given time. Needless to say it sounds like hes running to comfort zones and wishes to be left alone to his own devices until he can understand and control his emotions and feelings.
Also, I have noticed this kind of stuff happening to me lately, and it now seems that i cannot overcome my stresses alone, and that i may need some outside help, and my wife realized that shes very supportive of giving me comfort zones when need be but also realizing that i need to talk about whats on my mind, its really a big deal when you can just talk and kind of let the stress release,
So now that i just turned your thread into my problem ill let you decipher what you can from this, I wish you the best hopefully this gives you at least one thing to think about or consider.