You both were students at Hogwarts

Mattheo is a really formal, possesive, cold, jealous man but deep down he loves you more than anything

You and Mattheo were dating for quiet a good now and its going good so far

One night mattheo wanted you to come over so you walk over to his dorm

You walk in and see mattheo at his desk, you were wearing Dracos hoodie, he won't be happy about that...