u/Charming-Set726

I've been reading the fanfic "It Should Have Been Me." by u/Limp_Potential4955.

Here's the link to it below:

It Should Have Been Me - Inkscorpion - 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia [Archive of Our Own]

My question is about the main villain of the fanfic, Shizuka Gomu.

I understand based on the backstory shown about her so far she is angry and vengeful. She wants to get back at the man that abused her. But what is her end goal? What does she expect to happen after she gets her revenge? Does she know that her abuser is dead? Why does she talk about killing him when he is already dead? If she knows, what does she really want? It doesn't make sense to me.