Missy: I am sorry you're facing this. I would hope that if you can muster the strength to move on and not engage with her that she eventually may get tired of trying to get a rise out of you and move on.
I've had some difficult experiences on the job and have learned to set boundaries and to keep contact with bullies or even would be bullies to a
minimum.
Crossing fingers and hoping for better days ahead for you.
Peace.