You might have better luck asking other people who are aligned with him. But in my experience, crystals reacting like that usually mean something. [But then there's a small raise of his hand, a light grin, and a shake of his head.] The problem is, it's not always consistent.

First time I felt something like that was when Daimonia first appeared. There were a couple of times in-between, and usually it involved me feeling stronger emotions than usual. Had the same reaction again when she showed up.