Hi dawnhopeful, my husband won't come to therapy with me, either, and my marriage is over -- he told me he wanted a divorce (via e-mail -- classy!) last week.
It sounds like there is more hope for your marriage than mine; nevertheless, I would focus on YOU, on getting better. That is what I am trying to do. Unfortunately my husband decided not to stick with me "through sickness and in health," and that hurts, but I have finally realized that I need to take care of my own emotional healing first.
BeautyFromDespair put it beautifully by saying "You have the power to make it better by making you better."
Best wishes to you.