Ladies, if you’re in the dating scene, it isn’t just about knowing what to look for in a mate. It’s also about knowing what to stay away from. So we turned to CNN dating columnist, Audrey Irvine, to find out the top three guys that are total dating deal-breakers. First deal-breaker is the one-upper. This is the guy who always has to top everything you’ve done or every story you tell. If you ran a half marathon, he just finished his third triathlon.