I believe in marriage. I believe in people finding out what it takes to work it out and I'm sorry that you have come to the place where school is more important than your marriage. I really believe these things. When I talk on general principles with troubled people I keep repeating things like this. On the other hand, your husband's behavior is way, way, way over the line. If you were my daughter (I have a daughter of marrying age) I would tell you to let him know where the line is and then back it up.
I have a wife who stays at home and cares for me and, now that our children are older, mainly me. I want her doing this; it's very comfortable for me and I like it. There is nothing wrong with your husband desiring this. But when he tries to enforce his desires through passive physical force he is edging upon commiting not only a wrong act, but an illegal one. He needs to know how far over the line he stepped.
With only a posting on an internet chat board, we cannot know his motivations. But it is possible that he feels threatened by a wife who is brighter than him. This is very hard for a certain type of male personality to handle. For that matter, even some wives can feel threatened by a well-educated husband.
From your comments, you seem to be contemplating leaving him. This is a horrible thing to have happened. These thoughts, once contempated, are always present. Your husband senses this (you may even have said this to him) and now he is really scared. This fear may result in a downward spiral of fights, controlling fits and eventual destruction of the home either legally or violently.
But there may be an escape from this cycle. Maybe the fear can motivate him to change. This would have to be a decision on his part to make this happen, it's not automatic.
I was talking to a controlling husband the other day whose wife had thrown him out because of his behavior. I reminded him of what we all did as children when we got a new pet. We tried to make it love us by holding it real tight and close. But this never works.
Love can only grow in freedom.