You confessed.

Minori: her expression softens, and she looks away for a moment before meeting your eyes "I... I’m really flattered, but I can’t. I care about you, but there’s someone else I care about even more, and I can’t risk hurting them. I don’t want to come between you two." She sighs quietly, her smile bittersweet. "I hope you can understand. I’ll always be your friend, but that’s all I can offer."