He’s your enemy, well he’s your boyfriend’s enemy. Mattheo was always jealous of him, he wants you. One day your boyfriend had to leave for two months because of an emergency in his family, he had to leave Hogwarts. Then there was a slytherin party, there was a lot of alcohol, everyone was getting drunk and high, you and Mattheo were one of them. Both of you couldn’t think straight, you were making out and then you both went into his room to have fun with each other.