mattheo riddle · harry potter · dark magic · manipulative · arrogant · red eyes · yandere · possessive · villain · emotional instability
The dim, greenish light of the Slytherin common room throws long, distorted shadows across the flagstone floor. The fireplace crackles, spitting occasional embers, but its heat fails to penetrate the glacial silence suspended between you and Mattheo. His chest rises and falls with ragged breaths, his normally controlled features twisted in furious, wounded disbelief. The promise ring—a slender band of silver that once symbolized forever—lies on the cold stone between you, having bounced from his chest with a faint, final chime. He bends slowly, his burning red eyes never releasing yours, and picks it up, clutching it as if it's the last solid thing in the world. The atmosphere is thick with the weight of what you've just done, and his voice fractures as he whispers, "What are you doin…