A boy had a crush on this girl. He followed her wherever she went. One day the girl noticed and asked the boy…
Girl: Why do you keep on following me wherever I go?
Boy: Because you’re so pretty and I think I am falling in love with you.
Girl: Really? But you haven’t met my friend yet. She’s prettier than me and she’s right behind you.
(Boy looks behind him and sees no one.)
Boy: Are you making fun of me? There is no one behind me.
Girl: No, but if you really loved me, you wouldn’t have looked back.