Tragedies of a WAR!

My Husband came home in August from Afghanistan, for 2 days everything was great. Then the tragedy, He took me to my parents to spend the night and the next day I called him to come get me. His word were like a knife cutting my heart " I'm not coming to get you". When I asked why he said " I don't love you anymore". All I could think was what happen. He has PTSD now and I guess thats what happen when you come home from a war. I been so lost ever since then. How can you fix something that is broken.