HI, glad you are OK - regarding the comment from your xh (is it finalised?)
I think it is a mix of entitlement/grandiosity sociopathic type behaviour and I also think it is a way for them to feel less guilty.
A couple of years back I got the same type of thing from my xh - that I am in a better place because of him. Now he is beginning to at least admit that he hurt people (including me).
It is hard for fragile people to move through the world. They don't have the mechanisms that are developed as a normal part of growing up and living life. Doesn't make what they do any less awful for us, but it helps to see that they do not have the responses that most of us do, or the resources to fall back on.