So his official diagnosis is where?
Spouses can make anything they want fit, to try and justify things.
If he was on the ASD spectrum, and you seriously thought he was, as you said you don't know what to do.
You should seek referral and assessment. With a diagnosis of whatever, he can then seek the right therapy to help you all.
A lot of people say "no, it's too hard", "too many hoops to jump through". Well yes because labeling someone with a lifelong mental disability is actually quite a serious thing, as it can really affect ones life. But if that's what they have, then it's necessary to get the help and support one deserves. People always seem reluctant though, because it could affect their "prospects". Well yes but it can if they aren't getting the help. People then seem to cherry pick SD.
The thing is people are happy to carry on, without obtaining help/medical help/ diagnosis. Self diagnose and carry on putting up with behaviour they aren't happy with as it must be ASD. Then moan they can't cope.
Yes asd diagnosis's are hard to get, this is because it takes time, the professionals have to be sure. Also many who think they have asd, don't. That's why people who self diagnose, just to excuse shitty behaviour are doing untold damage to REAL Autism sufferers.
As people just think it's bad behaviour, when it's far, far more than that.
If people seriously think their husbands are mentally disabled, which is what you are talking about here. Then you owe it to your family and them to get proper medical help, if their behaviours are causing so much anguish.
You then may just find they are self centered twats and you are way off, or they may have some form of personality disorder rather than ASD.
But putting it down to ASD, without a diagnosis HELPS NO-ONE.