When just everything he said somehow came back to be about his ex, Sharona. How he missed her, how she was the love of his life, he'd never get over her, etc. Also, his friends and brother apologized to me when he introduced me as his girlfriend (ladies, just take that as a really bad sign and run the other direction of that ever happens to you).
Thankfully, that relationship lasted only about six months. He saved me the trouble of feeling guilty about dumping him by having an affair with my boss.
So a few years later, he married Sharona. He cheated on her too.