How do you find someones ugly side?

One of the nice things about being an average looking guy is you dont have to worry about a girl putting on a fake act and her true self will come around pretty quickly. Always thought it was funny how they treat me like total shit and then go off with some other dude and everything is fine and dandy. Kind of makes you want to warn the guy she's with since you know its just a matter of time before she shows her ugly side to him. Most of these girls I never even dated they're just horrible people personality wise. Just think about all the attractive guys that have girls put on a fake show and then two years later he's got a baby with her and now she's nowhere close to the person she was when they first met because the excitement of her being with an attractive guy is over.

How do you find someones ugly side?
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