I can understand the reason for feeling rage at the narcissist, but sometimes rage can re-inforce the connection and prevent the narcissists’ victims from truly separating. The “empath”, despite the rage, is still longing for a connection with or an acknowlegment from the narcissist.
I believe it’s better to ghost narcissists; physically distance yourself from them, mute or block them on social media, and get on with your life. Don’t explain or apologize. Give the narcissist a dose of their own medicine.