I strongly suspect ASD/PDA for exH. It really is crippling and massively wrecked my mental health.
To the people who 'helpfully' advise to get them to be assessed and seek out a diagnosis - we have lived where we live for more than a decade and exH hasn't registered with a GP (the marriage counselor gave him a bollocking over that). So the idea of him seeking a diagnosis is so fair beyond the realms of demands he can handle as to be unfathomable.
Also, the wording things right idea, I tried with little success, he would blow up and then calm down over night and do what I had, reasonably, asked the next day or so, or his version of it. I struggle with confrontation after an emotionally abusive childhood, so meant I tried to avoid this, so nothing got done and mine and the homes needs frequently remained unmet, unless they were something exH saw for himself and chose to do.
Interestingly since i moved out (February) he has done loads of outstanding work on the house, the day I moved out he fixed the toilet flusher that had been broken for most of the 10 years we lived there, that was like a gut punch, but I am trying to reframe it as just a feature of his PDA not a reflection on me. I think in part it is having a clear split of time (50/50) and not having me to communicate/ cooperate with on things takes the demand and anxiety away. He seems to be coping okay so far with 50/50 parenting, but has no life beyond WFH and DD, and the occasional trip to see his mother (once every couple of months at most). I worry how he will cope as DD8 gets older, she has been a pretty easy kid so far and I've dealt with ALL emotional parenting/ discipline, but she is determined, headstrong and sociable, so I'm not sure how the teenage years will go.
He had dinner round my house yesterday as it was his birthday and DD wanted to do him a birthday dinner. It was tough, I realised how much I had put up with and burried in myself for the last decade, especially in comparison to the new man I'm seeing, who actually reads my emotions and communicates. My exH can't even say hello, goodbye, please and thank you like a normal person.
His moto in life is 'I can do it by myself', when we first got together I used to just laugh along with him saying it when really I should have seen it as a massive red flag.