"And I wasn't done here. But I was overestimating your ability to notice the obvious. Like the fact that you're still talking with me." Maybe it will make her stop talking. Maybe it will make her snap. At this point, he's simply pushing buttons to see what they do.

"Is your poor friend suffering yet? Do you think they feel threatened? Maybe they're suddenly feeling a calf ache and have tumbled to the floor, all for the act of conversation. How they suffer." There are people he hates. He's not petty (or stupid) enough to tell people not to talk with them, which means he's rather interested in knowing who is.