"Whether you prefer the term or not, there is a clinical use for them, and neither of you display symptoms or signs of psychosis," she counters to Billy. "And I would rather not be in either of your heads. People who can callously justify multiple attempted murders, who can justify attempts to be serial killers, are unworthy of such deep dives. It only builds a false sense of interest in their habits."

With that said she looks to Stu. Because really he seems like the follower here.

"You do admit it though. You're only with him because you find fulfillment in your bond with him. You're an outcast. In a way I might almost call him an attempted cult leader. One who would make use of a weaker will to achieve his ends. I would pity you had you not known that such behavior was wrong. I have to wonder... Was this the first place he talked you into such behavior?"