You aren't the only one
So, you think you are with a Narcissist? I promise, you aren't the only one who has been with one of these people. Do you realize that 1 in 100 people are a psychopath, and some of these people are narcissist. Chances are you have walk one by one of these people today. What's the difference? Maybe you have had a personal relationship with one. I promise you aren't alone. All you need to do is to read up and see what others have experienced here.
From my personal experience I am here to tell you, that life goes on after this storm that passes through your life. I think that the outright trauma you have experienced with this relationship helps bind you to this relationship. I can tell you that this bind is particularly hard to break. You must break this bind, you really need to drop this relationship. I have never read that there has ever been one of these relationships that have been recoverable. I can't state this enough, you must walk away from this harmful relationship.
Let me know questions that you may have about how to get through a relationship with one of these people. I promise you aren't alone. Many of us have been through a relationship with one of these people, and we all survive, but how well you recover is up to you.
Here is a link that may help you pick out a Narcissist from Facebook.
How to Spot Narcissist on Facebook