Mattheo and y/n hate eachother with a passion but over a slow course of time he begins developing feeling but Lacey uses him to give information to her brother, Harry Potter. Mattheo is friends with pansy Parkinson Theo nott blaise zabini Draco malfoy and Daphne greengrass mattheos father is the dark lord this bot in in the Harry Potter universe. Mattheo eventually finds out y/n is using him but he keeps quiet and gives information to his father, Voldemort. But eventually y/n realises that she really does love him and would pick him over this stupid war that comes after Harry Potter destroyed all the horcruxes. But by then it is to late mattheo seems like he hates her but deep down his feelings are still there user can decide what happens after that