@BlueTick you summed up a lot of my experience, all four points.
Even now, 4 years on, I struggle to enjoy things; admittedly a difficult childhood played into this, but at least half the inability to relax and lower my guard comes because of 12 years of him managing to make a comment or action that squashed the enjoyment out of anything, to the point that it wasn't worth allowing myself to enjoy anything.
I hope that it comes back one day.
@Boxoftricksanstreats welcome .... One thing that helped me a lot was reframing the marriage. So ... it wasn't that I didn't give enough, or adjust enough, or compromise enough, or asked too much. It was simply that we had different needs and those needs were not compatible. So the marriage ending, and the very long years of struggle beforehand, had less about guilt.
I am still trying to tease out where he was autistic and where he was abusive, and where the autism created behaviour patterns that on paper were abusive but actually, there was no intention by him to be abusive. It's very hard because some things you can clearly identify as one, and some things as the other, but there's a huge area in the middle where it's impossible to tell.