Fed up!

I'm trying to finish dental school but it would involve me not working which my husband I NOT ok with. He got his degree but now that it's time for me to get mine he doesn't want to support me through it. After I graduate I'd be make A LOT of money but he can't give me four years to finish it out. I'm so fed up at the fact that no matter what he wants to do I support him and help make it work but I can't expect the same from him. I supported him when he went to another country a month before we got married to further his career but I can't ask for a little of the same support