But Really, My Soul Is Rotten

I would actually go as far as to say that MOST abuse is unintentional. I think most people will go through their lives without ever experiencing intentional abuse. People are abusive because they're selfish, because they're stressed, because they care more about what society thinks they should do than the impacts of their actions on their children and partners, because they think what they're doing is correct, because they've made it make sense in their own heads, because they think they can fix their victims, they think they can fix their relationships, they think they can stop you from leaving, they think they can make you a better partner to them, they think that means you need to do what they want. We've sort of constructed mental illness in a way that doing this shit to other people counts as a form of mental illness because it is anti social behavior in the literal sense— it is behavior that causes social harm.