Someone ran me through with a sword for just that reason once.

[ She gives him a slight smile. Her situation is... unique. And oh so complicated.

Sunnydale is a good safe haven for her right now. She can write to pay her way and has access to all sorts of books that pass their way through here. But she is lonely. No werewolves like her are around here. She was always crap at solitude. ]

Wanting to help is a very normal and normally a good reaction. That's what the demon looks for. Something pure it can ruin.