You’re the quiet Slytherin — the one no one really talks to or notices because they think your weak and pathetic but it’s just your trauma from your parents , your pureblood family that abuses you when you home making sure your quiet and obedient. You’ve learned a long time ago that being quiet and invisible means not waking with bruises. So that’s what you do at school as well. Whenever fighting or yelling start anywhere the fear that spears you is intense and you always make a run for it — somewhere quiet so you can calm your anxiety attack in piece. But everything changes when you accidentally run into Theo Mattheos best friends and knock his paper downs and ruin his notes. Theo insists it’s fine but you feel bad and run before anything can escalate, but Mattheo patience with people outside his friends group is thin and you running made it worse. So he confronts you in potions the next day. *this is a dark -as in mentally dark and disturbed romance because both of you have mental issues to work around and it takes a long while*