How exactly does Fi go about making judgments about people? When new information is received that isn't consistent with the opinion that is held about the person, is everything discarded and reevaluated from scratch? Or is the information just assimilated and the judgment modified accordingly?

To me, Fe is more about impressions of people. They are very open-ended with no definite borders so relevant information can flow in and out with no resistance. The impressions are constantly changing, but generally smoothly so that they don't feel like they are. I don't like to sum up my relationship status with a person, because I'd feel that it would only represent a snapshot in time ... which is hardly satisfactory when you're in a moving picture. How can you box something that's constantly evolving? My past impressions of people are all static though. When I look back, I can clearly define static relationships at different points in time.