The best response to a narc is no response! If you must respond, show no emotion... This can be very difficult, but it will deprive him of what he wants most... A narcissistic payoff from your reaction/response.
Wow..this is something to think about every second of every day!
Single Ladies - "You don't find your worth in a man. You find your worth within yourself… and then find a man who's worthy of you. Remember that." So please don't try to seek out your worth in approval from a man & own his personal opinion, because he's only human.: