You will never get closure with a narc. First, he doesn’t meet the 3 most important pre-requisites: A reasonable degree of sanity; a foothold in reality; So true, and he never bothered to say 'goodbye' .
You never gave me a chance to be the person you could love. Your defenses precluded you from accepting my love for you as,real. You were afraid so you shoved me out of your life causing more anguish than you will ever know.
Narcissism - If you're in a relationship full of ups & downs and you're constantly trying to prove your love and get back what you had in the beginning - look up Narcissism. "What a plot twist you were.