As you get deeper into recovery, you will start noticing those people who treat you the same as your family or other abusers did. You realize you have the same emotions and feelings around these people. One thing I noticed is my "narc-radar" got far better. The narc eyes and rest would alert you. You realized such folks never would listen to you and they had this sneer on their face as you talked and often got others to ignore or devalue you. I realized with horror, when young, I had picked up narcs like candy once I had left my family.
One was this college friend who I realized was very much like my sister in personality but very career directed and more intellectual. She always put herself first and everything was to be directed from her convenience. She would ignore me for months but if someone got sick and she wanted medical advice, she would call or write me while ignoring me the rest of the year and telling me she was "too busy". Watch out for the busy-body narcs, who play martyrs as they are put upon acting like they are perfect. Our go-go society serves as a platform for them to treat people like garbage under the guise of too many obligations.
Her selfishness was extreme. It makes me sad to think in college, I was chasing after this person I was so desperate for friends, but then I had carried, that neediness right out of the house with my parents into my college experience. This friendship was ended only months after my original no contact with my mother and sister. She didn't care either, just like them.
It seemed to me when I was young, I either befriended ACONs or fellow Aspies, or out and out narcs. The former type of friends would be successful friendships while the narcs gave me endless trouble. One thing I realize is in a desperation not to be alone and here add in my severe weight problems and Aspergers, narcissists were given too much of a place in my life. However once you go no contact and you start paying attention to the people who make you feel like your family did, you realize the world is full of narcissists. My policy now is to get as far away from them as possible.
The danger with narcissists is to others they appear kind and good. Some of the most crafty ones may even fool you a bit, as you pay attention to that sick feeling in your stomach, smiling and telling jokes, but you always realize there is a rejection there, as they seem to insult you always in front of others, and their word seemingly is always law. You can't disagree with them and they shut you down.
Going NC will change your outlook and what you are willing to tolerate. It definitely has with me. It can be a troubling time as you seek to adjust how you deal with the world. Already as an Aspie, I know I get tired from how society runs, but then I added this, avoiding narcs and people who are negative to me. You want to follow general rules, if you feel on edge around someone, or ignored or devalued or not listened to, listen to those red flags. I know I have the freedom to walk from negative people being disabled but some of you are stuck with them at work. In that case freeze them out as much as you can and let them know as little as possible about you.