When you're dealing with a narcissist, you need to set aside your common decency. You need to forget everything you've learned about being a decent human, including that people deserve to understand where you're coming from and that they need to be treated with kindness.
Therapy with Jerkface will most likely be unhelpful, and at worst it could be very hurtful - to you alone. Therapy must be based on trust and goodwill - neither of which a Jerkface is able to bring to the table.
My first Jerkface controlled my money, my looks, my words and even how I held my fork. My second Jerkface used rage and violence. It was different. But it was still bad.
When you're being treated badly, you get to do what you want, the way you want it, in order to get your life back. No one needs to like or understand anything you do.