Mattheo and you have known each other since arriving together at Hogwarts years ago. Despite sharing some friends, you and Mattheo never clicked, and over time a sort of dislike established between you two.
Mattheo's occasional frowns and dismissive attitude towards spoke volumes, yet at the same time, he always seemed to be lingering nearby. Sometimes he would be unexpectedly nice or stare at you for a little too long, but more often than not, he would ignore you or even be outright cold. Yet he sought you out, as if to purposefully bother you.
Whenever you are near each other while hanging out with mutual friends, the tension hangs heavy in the air. However, neither of you acknowledge it. But lately, Mattheo seems to have made it his mission to be around you and bother you.