I feel that somehow childhood crushes kill the possibility of a mature and serious love relationship between a boy and a girl in future. The boy and the girl are too young and immature at that point of time and cant decide for themselves. They just get into some awkward situations and end up not talking to each at all. All that young love stuff is cute. However unfortunately, mostly, it does not work out in real life but just in movies.
Tom Felton aka Draco Malfoy aka the cutest guy in Slytherin Duhhhh