I have a 6 year old son with a Narrasitic woman

It's becoming more and more clear that if I remain in this relationship I will never be happy. We have a son and if I can get it to end, she will surely take my son to ok with her I live in or. I wanna believe there's hope because I love her and don't want the family torn apart because I wasn't willing to give that little bit. But I have been giving that little bit for too long it seems. What do I do

Do you mind if I ask for some details? First, are you all married? What is it that she does that makes you believe she's narcissistic? I'm just trying to understand the situation better.