"And I'm sure you, as a Gryffindor, had it worse than the rest of us." She laughed. She knew his house had it worse than most back in school - at least where Snape was concerned.
She nodded again. "I suppose it must be hard to keep a willing blood donor like that." She didn't think most people would be up for such a task, the thought of it frightened her if she was being completely honest with herself.
"Would her substitute work if she got it better? Ease the hunger, I mean?" She had never thought about such a thing, but the uses could be staggering, not only from a medical point of view.