Once-supportive husband has become a bitter roommate

DEAR ABBY: Seventeen years ago, I had a mental breakdown. For the first three years afterward, my husband stood by me. The medications I was prescribed caused me to gain more than 100 pounds. I have tried diets, to no avail. I suggested to him that maybe we could hold each other and see where it led us. His reply was, “I’m no longer attracted to you. You knew when we married that I wasn’t attracted to larger (fat) women.” Since then, I no longer respect or value him. He has his room, and I have mine on the other side of the house. We do absolutely nothing together.