you being happy/strong etc makes him UNHAPPY
got that? he senses you getting free of his chains and is panicking to get you back within his clutches.
I know this is the most fearful thing on earth, when my abusive ex left I felt real physical pain (that pain in the throat you get when you're trying not to cry) is was excruciating.
you know he has to go, you know this.
please just dig deep, and stick to the simplest forms of expression that it's not working, that you want him to leave and that you will be divorcing him. repeat and repeat.
he'll get angry btw, he'll cycle between all kinds of 'emotions' trying to find the one you fall for. remember that he's not controlling from a perspective of power, it's due to his massive inferiority complex.
oh, and anger management is utterly laughable. he has no problem managing his anger - not against his peers, his boss, neighbours, general public. it's you he resents/loathes and wants to destroy. because then he'll have 'won' and become more likeable/kind/popular/intelligent than you.
this is a war. he'll take you down anytime he can,
because it makes him happy to do so. makes him feel more powerful.
you've lost 25 years not being happy, time to get away from him and learning to live!
he won't change, not ever. please see this charade for what it is?