You don't know that your life isn't the fairy tale happiness you thought it would/could be. THIS may not be the fairy tale, but maybe there are lessons here that will lead you to that life. I read once that we have to be willing to give up the life we planned, in order to have the life that is waiting for us. I tried for so long to "make" things work, there is a gift in letting go and letting God.
You don't have to do anything today. I learned a new twist on an old saying in AlAnon..."Don't just do something..Stand there!" If you're not ready, that's okay. Find an AlAnon group, read all you can, stay close to family, leave when things escalate. You will figure out what to do. But #1 priority is your safety, don't risk your life for him.