I love Katherine. She is just so selfish and evil and funny! I loved that she called Nadia to see if she really had to save Jeremy. I would have been ok with Jeremy being dead again. It really annoys me that Bonnie brought him back instead of Rick. I'm hoping that they somehow split Elena's body so that she becomes human again, and Katherine goes back to being a vampire. Elena is a horrible vampire. I don't really want to see either character gone for good. At least Nadia isn't an idiot. She caught on to Matt and Tyler pretty fast.