DEAR ANNIE: My wife and I started dating a quarter-century ago, and we have been married for almost 24 years. We love each other and are happy in our marriage, though I have one complaint. The problem is that she often brings up her ex-boyfriend from high school. She has done this since day one of our being together — to as recently as last week. They were together for 3 1/2 years until, in her words, “he broke my heart.” He was her first serious relationship and the first person with whom she had a sexual experience. She compares his performance in bed to mine. We started dating several mont…