As sad as I am to see Fish go (and you know, the unfortunate fridging aspect), I do appreciate a couple of things about what happened -
One, she and Oswald ended on good terms. I don’t think I’m unjustified in fearing that if Fish had lived the writers might have made them turn on each other again, and I’m glad that seems like it won’t happen now.
And two, my heart warmed even as it broke due to the way she was framed as a mirror of Gertrud in her death scene. Fish and Oswald as mother and son is one of my favourite things ever.
I was sat there afterwards just like “Do it for her, Oswald - kick Ed’s lanky green ass and rule Gotham like Fish wanted you to.” I kind of hope that the Iceberg Lounge has a tribute somewhere in its décor to her.