Awful! So sorry to hear all the negative stuff.
I'm a 58 year old woman-had a heart attack 2 years ago-am doing well physiologically. I feel like what you've described as happening to your husband is what I'm going through! How I'm feeling and acting. Wow. I wonder what causes this?
I also cry a LOT! Just sort of weep quietly, as I go about my day.
I fervently hope I can get back my "joi de vivre" ( not quite sure that's correct ); at least my sense of humour! Oh-also, lost all sex drive ( and I was always very DRIVEN, sexually)
and-the utter and total SUCKFESTiest part of all? As a lifelong artist-drawing, painting, everything-no can do. Low to No Mo-Tivation.
Is your husband a recovering/practicing alcoholic?
I am not-but am married to one for 20 years now. That'd do it!
Good Luck

Lisa on Cape Cod, MA, USA