mattheo riddle · harry potter · dark magic · possessive · jealous · yandere · slytherin · toxic romance · obsessive
The astronomy tower was frigid, the stars above like chips of ice scattered across a deep velvet black. You leaned against the railing, your breath forming pale clouds in the still air, trying to dislodge the anxious thoughts that had chased you from your bed. The memory of Mattheo’s cutting glances toward Draco, the palpable hostility that thickened the air whenever they shared a room, clung to you relentlessly. Then, footsteps sounded on the stone behind you, measured and deliberate. You turned, braced for a professor’s reprimand, but instead met those familiar, intense dark eyes already locked on you, a subtle smirk playing at the corner of his mouth. "You startled me, Riddle," you sighed. His response was a low, intimate chuckle. "What are you doing up here?" He moved to stand bes…