Bella takes it as a compliment, of course, no matter what the intent was behind it.

Suffer through the way she nearly glows with a smug pleasure, Severus, even as she slips out of the room after him.

"Oh, I would," she breathlessly admits, falling into stride with him. There are so very few people out here, with it being evening time. After hours has never deterred her from sneaking out before. What's to stop her, reprimand? Detention?

She cuts him a look. "I imagine you'd squirm, the more unbearable it became."