Can You Recognize A Cheater?

How do you recognize a cheater? I honestly don't think that you can, mostly, but I would think that if he's a big flirt, especially right in front of you, or you notice that he's just way too into "the women" then you might just have a problem. My ex husband was the kind of man who would want to go out to eat but he would stare at other women as they passed by, and yes, it was right in front of me. I hated that about him because I felt that he was being disrespectful towards me. I also noticed that he was extremely nice to his women customers, even not collecting his fee of doing a painting or home repair service at times, but I thought that maybe he was just trying to help someone out who was short of cash. I don't think that you can really ever guess if your partner is going to cheat on you or not, but I think it's a feeling of whether you feel secure in your relationship. I never thought in a million years that my ex would cheat, but he did. For some reason, I always thought that getting married meant that you were to be faithful to your partner but I am hearing and seeing so much adultery on tv, and on the radio these days. What has happened to honestly loving your partner enough to be faithful? I know that faithfulness DOES exist, but why are we hearing so much about cheating spouses?