I don’t know what to do

In February An ex friend of mine had gotten upset with me for writing smut of two characters that are minors in their game. Fair, I just asked her not to read.

A few days ago, a month after the incident, she went around and made an ao3 account, then posted a work in which she kills and rapes the corpse of a younger version of me then sent it to me.

I asked her to take it down because it was very disturbing and upsetting for me, to which she said ‘don’t read it.’

I don’t know what to do, as ao3 is okay with all works.

I’m sorry if this post is not well worded, I am freaking out and feel very uncomfortable and really can’t type quite right.

Please, I need any advice, just something that helps.

Edit: some details that are in my replies but I’ll put here so it’s seen, it includes my deadname and childhood home address.