Ever thought you truly knew someone, only to find out you didn't know them at all? We've all been duped by seemingly well-meaning people who ended up being a total nightmare. We might sometimes have a small feeling that something is "off" about a person, but it's still jarring when they go from Dr. Jekyll to Mr. Hyde.
Redditors shared their true stories of times when they suddenly looked at a person much differently. Like when friends do terrible things, these discoveries ended life-long friendships and blossoming platonic relationships. From tales of betrayal to accounts of manipulative behavior, these stories reveal that not all friendships last forever.