Your situation sounds pretty bad to me. Don't let yourself be abused any longer by this person whose first priority is drugs. You can do better. Let it be a lesson to you what not to look for in a relationship. That's what I see so often here is people get into relationships with someone whose first priority is drugs. That's no way to live. You know now this person will not be able or willing to support you the way you want to support him. Move on and be grateful you can move on with no strings attached.