Apparently. I'm slowly discovering a whole network of her seemingly unnecessary lies and attempted manipulations. All directed against me, for some reason. Weird stuff. I'll bore you with the details later.
I had worked with her for two years before and only noticed she wasn't very friendly, but was very ambitious and didn't seem to like our students very much. Now I have the knowledge to notice other stuff, and hopefully deal with some of it too. At least work on not taking it personally and not seeing it as a reflection of my actual work and worth.