Could you ever be a stalker?

The story is true. The young man has no name for this story. Young man meets young woman and falls in love. They date for 2 years. Having their ups and downs, the young man still falls deeply in love. He doesn't have much money, but gives the young woman gift after gift. They break up. They get back together. Then, for the final time, they break up again. The young man is devestated. he calls her. repeatedly. She warns him....stop calling me. He keeps calling. One day, while he is at work, a few police officers come to arrest him. He's been charged with stalking. He is booked and charged. He goes to court, the charges are dropped, and he does community service. The question is: Could YOU ever become a stalker? I'm sure with the right amount of dating--diff guys, several years--I could be a stalker too.