So this man has been abusing you since 6m in? WOW. That's a WHOLE YEAR faster than on average. Usually it takes between 18m and 2yrs for an abuser to make themselves known.
I want you to stop for a moment. Right now and breathe.
YOU HAVE TO END THIS. If you don't it could be the END of you. Someone who is this nasty this early only has one way to go. Violence, and then EXTREME Violence.
2 women a week are killed by their partners in this country. With the speed and intensity of this man's treatment of you, you are at real risk.
It doesn't matter what you think you feel for this man, you have to do the only thing you can do, and that is to potentially save your life and potentially that of your son. You loved the person he pretended to be to hook you. That person never existed. That person is long gone. You will never ever see that person again. Only flashes designed to trick you into taking more manipulation.
What this vile man does, doesn't do/say/think is immaterial. Why does he do that? because he wants to. Read Why Does He Do That by Lundy Bancroft for the full picture.
This book will also tell you what I will tell you now, but at greater length and more intelligently. This man will never change, he will always and only ever get worse. He could really harm you. Or worse.
I know what it is to face up to this, it's horrific, but you have no choice here.
Please keep in your mind at all times that none of this is anything to do with you, nothing you did, said, are or are not is anything to do with the way he treats you. He would (and does) treat ANY woman like this, only modify the techniques needed to gain control.
End it today. He raises so much as an eyebrow, you call the Police there and then.
Keep posting, you will need support, and it's here in spades, OK?
(((HUG)))