A couple can be shouty, but still respectful.
You can have an increase in tension, get into a short shouting match, go away have a little think and find a middle ground and make up.
Shouting to shut the other person up when they are calm and blame it on the other person is not ok. At all.
So, there is no affection, no intimacy, no respect.
What exactly does this man bring to this marriage?
You want to keep it because you have invested a lot on it, you have given up your career, your course, for the family. Not for your children, but because of him because he won't support you.
Is he prepared to give up anything for you? Anything at all?
This is not a marriage, sorry. It's his kingdom, and you are his subjects.
Can you see that?
It might do you good to go for counselling, because, as many of us you think you are in control. That you can control him. You can modify yourself and make it better. You are too proud to say you have failed.
You haven't failed. It takes two in a marriage. He has failed miserably.
You invested a lot, but you are losing in this investment.
You are now throwing money after bad money. The more you throw in, the more you invest the more you lose.
Just cut your losses short and walk away. He can suddenly realise what he's missing and turn himself into a good investment (doubt it, but it's possible). I very much doubt it will be better until you are prepared to leave, and not return until he has shown to be deeply changed.
If he doesn't change, at least you can move on with your life and stop wasting time with this nasty man. You can build up a happy life alone with the children or find someone you can have a good relationship with.
There's a world of possibilities, but not with this man, not as it stands.
Find your inner assertiveness, tell him it's make or break, and see how he responds.
But I share the same sentiment as another poster that he could become dangerous. If he does, play it cool, as if you've given up. Get as much support as you can, then leave without telling him.
We'll still be here.