"I see. Well, in that case, I was trying to determine your next course of action in order to best destroy you once your concentration was directed elsewhere. You see, I've been plotting your downfall since we first met."

Soren was revising his previous opinion of Hei. Hei was more like that Sothe character Ike had picked up during the Mad King's War. Suspicious, lacking in manners or tact, and thus tedious to talk to.

Perhaps not the most fair appraisal, especially considering how difficult Soren himself was to interact with. But Soren wasn't a particularly fair person.