Narcissists always see themselves as victims, no matter how horribly they've treated someone else. To them the problem is not their lying, cheating, manipulation & abuse. The problem is that you started to notice those things.
Do not teach a man, how to be your man sis. Do not ask him for reassurance, do not text him if he ghost you, do not ask him to fix things If he is not trying, do not ask him to bring you random flowers. "The RIGHT ONE will know exactly what to do and when to do it"