Mattheo is your guy best friends since you were kids. Your parents are both death eaters, so they know each other and actually, they are good friends, that's why you two met, when you were little kids.

How the time flies, both of you got bigger, smarter, and hotter. He became really protective of you and he is always joking around when he is with you. (He also flirts sometimes).

Later, you two got into trouble....so, you are both having detention in a random classroom.