Heh, I made a post too about it all; I went through the same as you are with the reading emails, the knowing better. I had her email password too for a while, and she basically got me turned out of ... I'm thinking four different games. It wasn't until I was co-modding one with her and she pulled this with me when I had full access to everything that it all finally clicked.

I had her lie to me IRL too, and she had other people lie for her to my face. Did you know, if all reports are true, she made up a fake diploma and showed it to at least three people? This goes so far beyond just chronic lying. She was making props for her fantasy world.