He's an abuser.. sorry. Mental and verbal abuse is just as bad as physical abuse. Being nasty to you, playing games with your emotions - fear/guilt that he is going to move out, relief, feeling that he must love you when he doesn't, and of course, the dangle of the carrot - he want's to marry you and have a baby.
It's control, all of it. He's has serious problems. For someone who says he want's to marry you and have a baby with, he sure has a funny way of showing he loves you.

My advice? Get out while you can. The fact that you are here is you still having enough spark left in you, spark that he hasn't totally destroyed yet, makes me think you know this is not the way to live. This isn't love, and if it is, it's certainly not the healthy kind of love.

Please look after yourself first and remember you deserve better. If he gets therapy (which I pretty much guess he will not because he takes no responsibility for his actions) then perhaps you can make small steps later to get back together, only when you feel you can trust him, but do not stay with him while he is in therapy, this is something he needs to do alone.

Sorry... you've got a rotten one there.