I usually take the side of the woman no matter what.
Like the saying goes "support women's rights and support women's wrongs too!" I'm like that.
But that woman...
When she tells her husband the truth in ch.1 I couldn't but think "Uwaah... she's the worst."
I think that phrase is supposed to be used when a woman responds to a wrong, not just for a woman being an asshole.
I'm not sure. At least in this forum, I've mostly seen it quoted when some girl cheats on her significant other. Bonus chance points if the SO is a good person who doesn't « deserve it » and the girl is inexcusable by any regular standard.
Maybe I'm not reading the right things since this is the first time I've seen it and then I went and read some articles about it. It seems like it's a real quote, and one of the articles was about reframing women who are villainized by the patriarchy. The metaphor they used was the Salem witch trials.
I get it in a joke context too, like especially if it's your ship that the cheating happens with. But this seems pretty clear cut that the mom is a shit person. Forget the cheating or that she doesn't find her husband manly, that she just up and leaves her daughter is so messed up. Just get a divorce but stay in your child's life, you monster.