Masaki freezes on the rooftop upon being spotted. There's a flush of heat in her face as he leans out the window and shouts across campus at her. Does he have to be so loud?

The slam of the window makes her flinch, even this far away. That's... really rude! God, why is he so awful?!

She doesn't go inside immediately. She hangs out on the roof for another hour, just to make sure he's not going to sneak out of the dorm and run amok while she isn't looking. But eventually she gets cold and tired enough that she calls it a night and heads inside to her nice warm bed.