Oh, Spyralle... wow!!! !! ! Reading this, I heard the theme song from the movie "Rocky" in the background

Absolutely awesome!
There's such a heavy dose of the bittersweet involved, yet I'm so happy for you that you're free from that oppression. She sounds like a real doozie!
What gets me is the part where she brings in HR, to make it look disciplinary (like that person/department doesn't know you chose to resign??)
So typical, it is. Whether in a divorce, the breaking off of a friendship, or ending a job, the same old pattern: You have a legitimate gripe against NPD and she turns it around and takes issue with you. I hope that you are allowing yourself a great measure of relief and satisfaction to be out of that.
And now, let the new opportunities flow

Wishing you the very best,
Carolyn