1. You alone define your value. Your value is not defined by that narcissist, nor by anything external.
2. The key negotiating with a narcissist is to build a strategy and leverage that actually threatens a source of narcissistic supply that is more important for the narcissist to keep and retain than the supply that they get from jerking you around and keep you miserable.
3. When you’re creating a “magic bullet” leverage, think about what’s going to motivate and squeeze that narcissist.