4. He feels constricted dating one girl.
“If I’m dating someone clingy, I feel restricted, and cheating is like an outlet.” Some guys just aren’t suited to being serious about one girl. He may love you in his own way, but if cheating is the shot in the arm he needs to stay in the relationship, he’ll never give it up. It’s time to think rationally about whether you can be happy in a relationship with a guy like that.