Has anyone dealt with a narcissistic partner?

Yes, keep emotional distance. Leave whenever they try to push you into doing things you don't want to. Walk away, don't argue because they are masters at it like most people master breathing or sleeping. Never engage in disagreements with them just act as if they aren't talking and walk away, don't answer texts, don't answer your phone. Go do whatever makes you happy within the confines of your relationship and invest in decent ear buds to block out their bs. Good luck. I truly hope it helps