I'm always glad to hear that I'm not talking with idiots. It lightens my load considerably, when it's true.

['...I don't think I know enough about her to "spill", honestly. I'll just say this much.']

Well, she comes from a group that's interested in Haruhi. And she's a psychopath. Other members of that group are less so, but she happens to be the most dangerous one of the lot.