Emotional abuse is more tricky and complicated than physical abuse. You call her stupid for what she does, but that's the point per se to show how irrational people can be, we are creatures of habit we do what we know what we are used to, from an outside perspective it's easy to say ya she is stupid for doing that, but unless you are that particular person and in that particular situation who are you to judge. If domestic abuse was so easy to escape from it wouldn't be a problem to begin with. Especially with emotional or psychological abuse, it's hard to prove to others and yourself, that it's nature, that's how it is able to be, it's a vicious cycle of second guessing everything, afriad of there being a catch or obligation if you receive help from someone, so you refuse help, deny that you need help, and so used to feeling alone maybe you forget how not to be alone and when you haven't had any support for most of your life you can become selfish and stubborn, that's the issue with mental health everyone is different and what's obviously stupid to you might be someone's else's best choice in their mind, so please try to be a little more open minded we all struggle in different ways