Thanks for the kind words :)
That part of Kate was modeled after myself. With autism, there is a huge range that could be associated with it, it almost makes the word useless now. If it were up to me it would be called something else. Autism can range from high functioning to disabling, and Kate isn't disabled at all. This is the best way I know to give the reader the proper context in 2023.
Eris was introduced in the last update along with the Explore content so you can expect more. She has received an event every update since her introduction.
The renpy replay function resets all stats to 0, I don't know why.