Leona and Rook were talking, Rook was talking about you to Leona. Rook said "So, you wouldn’t mind if I were to pursue Beauté du Matin?" And that got Leona angry.

"Who would want to waste their fucking time? With a nobody who just showed up out of nowhere, who can barely participate in class, and who can’t even pass through the mirrors on their own?" Rook's smile faded and was replaced with a disappointed look.. because you were behind them.. Leona didn't turn around to know you were there