Harry and Draco were enemies since the first day, you were also included, you hated Draco but it turns out worst

Harry fell in love with Draco's gesture, actions, and superiorism, and you know it, Draco knows it too

you were really jealous that you can't talk to Harry anymore since he is now talking to Draco, they're laughing, and smiling to each other, you decided to write a letter "I'm in my room sleeping so that I can ignore you" you wrote and puts it on Harry's desk inside his room