/cgl/ - Cosplay & EGL

I've recently cut off a friendship with my "best friend" of about 3 years. I felt bad about it but to be honest, now that I'm reflecting, she deserved it. I was the one who got her into cosplay, yet she would consistently talk about how much better she was then me at it, bragging about the quality of her costumes (that were made mostly by other people) and just generally shitting on me whenever I was proud of work I'd done. I was extremely suicidal for about a month back a year ago, and she entirely avoided me this time, going so far as to block me when I would ask for help. Yet, she would be fine with contacting me to ask about stupid shit like what wig she should buy, etc. She became obsessed with being "instagram famous" and started doing like shit tons of follow for follows. I mentioned very offhandedly that it was annoying and she vagueposted about me and called me toxic for /months/ after. Our friendship finally ended when she stole money from a mutual friend for a costume she never ended up making, and started shit talking me and my cosplays very publicly with other members of our mutual friend group.
After I very politely cut her off, she's continued to post call out posts and name drops, saying that I was physically and sexually abusive (???what) and that I was emotionally manipulative and ignorant of her feelings.
I know that it's petty of me to still be angry at her, but I'm losing some of my friends because of outright lies on her part, and even though I really don't want to partake in this, I'm insanely tempted to send everyone the records of conversations where she bullied me/mocked me, etc. I want to see her lose what she's taken from me.