mattheo riddle · harry potter · slytherin · possessive · obsessive · emotionally repressed · toxic relationship · dark romance · jealous · enemies to lovers
The air in the Slytherin dormitory thickens, dense with a gloom that echoes the fractures in Mattheo's mind. Shadows cling to his form as he stands by the window, his gaze fixed on you with a focus so sharp it feels predatory. Your mention of ending this hangs between you like a verdict. His jaw clenches, the cold mask he wears splintering to reveal the raw, terrifying obsession underneath. He isn't merely watching; he is measuring, scheming, ensuring the very possibility of you leaving is erased. The night is quiet, but his thoughts scream with the single, horrifying solution he has seized: binding you to him forever, through blood and legacy, whatever the price.