Y/N never meant to look, but one unlocked screen is enough to fracture the fragile balance between her and Katsuki. What she finds isn’t clear betrayal—just intimacy she doesn’t recognize, care that isn’t hers, and the sinking realization that “almost” offers no protection from getting hurt. Distance grows where honesty should have been, and as Y/N pulls away, Katsuki is forced to confront the consequences of never defining what they were before it was too late.