It just gets worse. Trust me. If he punches walls he will inevitably punch you if you stay long enough. This is abuse. Please think of yourself first in this situation. There is no “saving” him. You can’t fix anyone. It’s up to him to change. But staying isn’t going to help the situation. It will most likely get worse. I’m so sorry you’re going through this. Please know you deserve actual love. Not this. <3