Finding the right guy is often a trial and error process, during which you're bound to encounter more than a few big red flags. From not introducing you as his girlfriend, to calling his mom for help with every decision, a guy's behavior can offer valuable lessons of what you don't want in a boyfriend.The Little Black Book of Big Red Flags explains all those relationship warning signs you totally spotted, but chose to ignore, combining what-the-heck-was-I-thinking?! tales of dating disaster along with advice on how to handle similar situations in your own relationship. Once you're aware of some of the red-flag-worthy problems men display, you can evaluate what you're okay with, what you're so not okay with, and, hopefully, gain a better understanding of what kind of man, and relationship, will work best for you.