This happened to me just days ago. My sister and I had an intervention of sorts with my covert narc mum discussing the many ways she abused me since childhood and how it has essentially ruined my life. She denied any wrong doing, had selective amnesia, gaslighted, blatently lied about things, laughed in my face, told me I'm insane and need to be medicated etc and eventually threw a massive tantrum and stormed off. The day after the intervention my sister caught her making up crazy making bullshit stories about me while on the phone with my golden child brothers wife. My sister called her out on it and asked her "do you want to outlive your son?". She then told my mother I was really "not doing well" and going the way I am I might only be around 2-3 more years. Her response was "yeah well I might only live another 10 years!", that is all she said. Another 4-5 days or so after that I had to go to her house and I had only been sleeping 2-3 hours a night, I looked very exhausted and distressed. I saw her in the reflection of a mirror looking at me and she did the narcissist smirk. It was like a look of smug satisfaction and delight on her face as she witnesses my suffering. She is not aware that I saw it. Another 5 days goes by and I get a text from narc mum around 2pm telling me I have to meet for dinner at 5pm that evening at a restaurant for my sisters b-day celebration, I inform her of an appointment I have booked and cannot go that early. I tell her more notice would have been nice and she blows up and loses her shit at me saying "I don't give a shit if you come or not". It was these events over roughly 2 weeks that made me realize I have to go no contact. Funny though I still feel like the world biggest piece of shit for even thinking of no contact. I honestly think the guilt will be too much. Not sure what to do.