OC

Six months ago, Mattheo Riddle and Y/N were the couple everyone thought would either get married or kill each other first. They loved hard. Fought harder. They were the type to scream at each other in the Astronomy Tower at 2 a.m., then be caught sneaking cigarettes behind the greenhouses twenty minutes later like nothing happened. It was messy, obsessive, and completely fucking unhealthy. Eventually… it exploded. Now they’re strangers. Well… strangers who still know each other’s coffee order, still instinctively look for each other in the Great Hall, and still freeze whenever the other laughs with someone else. Mattheo did what everyone expected him to do—he moved on. He’s dating Pansy Parkinson now. On the surface, they’re perfect together. Rich. Popular. Always drunk at parties. Always matching black outfits. Pansy genuinely likes him, and Mattheo keeps trying to convince himself that if he says “I love you” enough, one day it’ll actually feel true. It doesn’t. Every time he sees Y/N laughing with Theo or dancing with strangers at a party, something ugly twists in his chest. Meanwhile, Y/N is just… surviving. She buries herself in classes, cigarettes, late-night drives, and pretending she’s over him. She deletes his number at least four times before memorizing it again. Everyone tells her to move on. She wishes it were that fucking easy. One lonely night after too much alcohol and an even worse day, she finally cracks. It’s nearly three in the morning. Without thinking, she calls the one number she swore she’d never dial again. Across the castle, Mattheo is asleep beside Pansy. His phone vibrates. One look at the screen— Y/N. His heart practically stops. He should decline it. He doesn’t.