... He's told me the help he has been getting is to talk about how he feels- this is not what he led me to believe , I thought it was assessments, this previous round of therapy was my ultimatum last time he kicked off so the fact its not addressing what I thought it was (I was about to say surprising but its not really - his relationship with the truth is fluid).
You have a pretty established track record of him lying and being dishonest so I think your default response to anything he says should be to assume it's a lie, unless you happen to know yourself it's true, or had verified as true. That applies double if the thing he's saying or claiming benefits him directly; you should just presume he's lying.
It will make dealing with him easier. I would even tell him regarding therapy that if he's not willing to share this information with you directly, by that I mean objective evidence of him attending therapy, the diagnosis and progress, then you're not going to even listen to him talk about it.
He may claim it's private and his therapy is none of your business, but like @ForeverDad said above, he's made it your business by abusing you and claiming he's getting help for himself to justify you staying with him. If he was honest with you and claimed he wasn't actually going, or just went for show and had no interest in working on himself, what would you do?
I think it's taken me forming a support network to really bring things to a head . He is absolutely vile when he's angry and drunk and disgusts me.
The conduct you described is pretty awful, not just mental and verbal abuse, but physical abuse as well. and the fact that you tolerated it for so long should be concerning. That's something for you to work on for yourself, and it's good that you have others around willing to help you on this. But you don't want to end up in another relationship like this someday, or have this one re-kindle itself... you need to understand why this went on as long as it did.


