Stay Strong! You're doing the right thing by getting healthier, seeking help and he's punishing you. If he doesn't support your path to healing, he is NOT the right guy for you.
My AH treated me this way when he started his affair. It is crazy making stuff. All the blaming. YOu don't want to hear his reasons. You are leaving him. It is your choice. You will be free of him and his toxic behaviors!
I hope you stay detached, stay in control of your emotions. DON'T FOLLOW HIM ASKING QUESTIONS. Do not give him the satisfaction. Keep busy and polite.
I"m sorry you're being treated this way, but you know this is best. Very sorry Girl, do you have friends there to go to and talk with in real life?