DEAR ABBY: My wife, “Cynthia,” and I are a middle-aged couple who have been married four years. Shortly after our wedding, she suffered a stroke during a heart transplant. After she returned home from the hospital, a “friend” told her I was having an affair (I wasn’t). Without telling me why, Cynthia threw me out of the house and returned to a distant state to be near her family. She had most of h…