I'm thinking of ghosting someone that was abusive even if they were going through a tough time
What kind of abuse was going on?
She used fake names and harass me on Facebook all the time without any care in the world.
This person you knew had severe problems and that is truly not cool. Humans are still who they are, it is better to help someone than ghost them even if they did things to you that were unacceptable. Be there and suggest taking them to therapy to get their act together.
I'm fine but they need help. I will suggest it to them to see if they take that advice.
You are amazing for trying at least after all they did to you. I'm pressed, keep being the awesome person you are and you will go far in life!