I stand by what I said tho that it doesn't makes sense for the mom to be written like this. Even Claude had his redemption arc. The guy who neglected his own child and had her executed from believing she poisoned the other girl.
And, I concluded that this reeks of "internalized misogyny", not by just how the mom is written but by how flat most of the female characters are. (A "flat character" refers to a character in a story who is lacking depth and complexity, and typically not undergoing significant change throughout the narrative.) For me, this feels like internalized misogyny. If you don't agree with that, that's okay too, but you didn't need to cherry-pick my words.
Some people have been commenting that they don't like the way the mom is being written. And that's fair. What's not fair is to call the author misogynistic. There are millions of manwhas where the dad abandons the child even knowing they're biological. Many of them don't have a valid reason at all. This time it just happens to be the mom. She's just an awful selfish character and that's that.