When you're dating a guy, he is perfect at the beginning of the relationship. He's got perfect manners, he's always on time and he listens to the things you have to say. But could he secretly be a cheater? Look for these three clues to be sure!

He claims to be broken up with his ex, but sometimes complains about her indicating that there is still some tension or problem between the two of them. When you're not around, is he talking to her and working on their "conflict"? If he's dating you, but still in contact with his ex on the side, you may be in a potential nasty love triangle.

His father cheated on his mother. If your guy's dad was a cheater, chances are your man has learned this behavior by observing his dad and the drama that came as a result of his infidelity. When your guy talks about it, does his tend to take his mother's side or his father's? If he thinks his father can do no wrong, he may be open to doing exactly what his father did.

He comments on the looks of other women. Whether it's a celebrity or a random girl on the street, if your guy is always comments on the way women look, he's looking at more than just what they're wearing. You better watch out because he could be a potential scoundrel!