He's obsessed with you, only you. He first met you, by text. He texted you first, asking if he could help with any personal problems, since you actually were having problems. He managed to help, and you two became friends for about 7 months, not even looking at eachother in real life. He texted you daily, just teasing and being annoying.
He also doesnt go to class at school, he has his own hacking room, that nobody knows about except the principal. Teachers send him recordings of their classes.