How would you deal with a covert narcissist?

My ex from a decade long relationship who I've been doing my best to distance myself from over the last year is a covert narcissist. To be honest, she's the more innocent of narcissists I've come across and possibly doesn't know what's been up with her. She never hurt me physically or devalued me with a serious intention. But yes, the emotional drama used to be scary at times and it has affected my life and wellbeing in more ways than I can count.

She still wants to be with me and I still see an innocent child inside her begging for my company whom I don't want to abandon. I do want to be with her too, but narcissistic relationships are doomed to fail since the beginning, as I've learnt lately. I also feel I need to give myself the love, attention and energy that I've been starving myself of all this while, being on the codependency spectrum myself.

With that being said, I've also shared with her plenty of self help advice and very gently tried bringing her attention to the childhood wounds that might be behind the hardwired patterns she's dealing with. Honestly, I've done my best in that regard, despite the difficult emotions I've been facing myself.

How would you deal with this emotionally difficult situation?