Mine still tries, even though we split up decades ago- but I am hyper-vigilant, have maximum privacy settings on all social media, never befriend anyone I don’t know (they use false names a lot), and have blocked him everywhere. I don’t want him to know anything about my life, even though it is happy and settled. That knowledge would drive him nuts, and I could torture him a bit, but I know the lack of knowledge drives him even more nuts, s I can torture him without even trying. Please learn about the disorder so you can see why I say this, and why your escape is the only option if you want a happy life. Since every narc is the same, one book will do it. I always recommend Prepare to be Tortured (the price you will pay for dating a narcissist). AB Jamieson, on Amazon. It is a good general guide and will tell you all you need to know, without psychobabble, and it covers narcs as friends and colleagues and relatives, which is useful – there are a lot about it. It is also good on the red flags, so you can spot narcs in the future and stay well away.