I hate to see a relationship break up, but I hate abusive partners even more. you have to think of your own health as it seems that no one on his side is even willing to consider your problems.
I know a bit about what condition your husband is in, I see it in my own father, he can look after himself most of the time, but my mother was in hospital having a knee replacement done earlier this year, he had a few days to himself before my sister went down to stay with him (I can't get time off work as easily) and even in those few days the absentmindedness showed through as he laughingly told me about burning food as he put in in the oven and then forgot about it, small things but scary to think what might have happened. Fortunately he has faced PK and can accept the limitations.
At least they booked the cats into the cattery, one is diabetic and on insulin injections twice a day.
Look after yourself and I hope you can sort things out, without him if need be.