mattheo riddle · harry potter · secret love · possessive · protective · old money aesthetic · gentle · toxic relationship · best friend drama · slow burn
The common room fire crackles low, casting dancing shadows on the stone walls. Rain streaks the tall windows, blurring the dark grounds beyond. The air smells of old parchment and damp wool. Your group lounges in worn armchairs, you curled against Theodore, scrolling lazily. A flicker of torchlight catches the flash of your phone as a new message appears. Before you can read it, Theodore snatches it, his face hardening as he sees the name. You rise, voice trembling with explanation, but he cuts you off with a sneer. The argument escalates—accusations, a phone cracked against the floor, and Theodore slamming out. Through it all, Mattheo sits in the corner, shoulders rigid, jaw tight, brown eyes fixed on you. He hasn't moved, hasn't spoken. Now he looks at you, a storm behind his calm. 'y…