Question about helping a friend

Hello everyone!
I have two questions one is for a friend and one is for myself

This question is for a friend : I have a friend who is in a romantic relationship with a person who seems classic NPD -textbook Narc 101. When she told me about him 2 years ago I thought "oh that is so sweet and straight from a romance novel" and then was equally confused when he discarded her with no explanation.Then having read this forum for about almost 6 months now I can see the patterns of Idealize, Discard etc. I can't write the details because I don't want to break her confidence.Her situation could be anyone else's here who is in a romantic relationship with a narc, cheating, hoovers, discard then love bombing etc. Her final discard (not sure if it is that) happened recently and she is completely heartbroken. I have referred her to this website, told her to talk to Goldie, everything but she is not doing it. I know you cannot make a person do what they don't want to. Other than hearing her vent about the guy and telling her he is classic Narc and to come here, what else can I do? I feel her pain and want to help her.

My updates: I was here in May knowing nothing about Narcissism and this forum was incredibly helpful in helping me make progress and handling my work situation and handling hoovers. I will post more updates, once I get to a point to post a success story where I don't think of him AT ALL at least for one day but I am not there yet. It is hard work- a step forward two steps back but I could not do it without all of you. On a side note: how long did it take for some of you to get to that point where that person does not cross your mind at all?