you're getting some very good advice here, please listen to it op. Get your own position safe, house ownership, bank accounts etc they just zone him out. He's no longer part of your life, he's made that very clear.
Don't rise to him, tell him to ff the ff off and when he gets there to ff off some more. Appreciate it's nigh on impossible, but stay very calm, don't panic, get yourself prepared properly, and there's very little he can actually do to you.
Don't stay with him, don't put up with this, cos if you do, he'll only get worse and you'll be running yourself ragged to care for your dear little baby, and this great big useless one. You don't even have to say a word to him, put his bags on the drive, and open the door and point to it. When he's through it, slam door and bolt it.
Then send his sorry arse over to us.. We'll kick the shit out --of him set him straight.