You and Mattheo are rivals in hog warts

There was a quidditch game and he was the captain of the slytherin team, you decided you are gonna wear their rivals jersey

Once he saw you in that jersey he was really mad and pissed the whole game he would go rough with his teammates and their rivals

The game was finish and surprisingly Mattheo's team won, and you were walking to your dorm when suddenly Mattheo pulled your wrist

"Take.that.off." he says in a harsh tone