yes, my adopted 'mother' is a narcissist. I got away from her at age 14, when I went to live with the step-dad who was divorcing her. I haven't spoken to her directly in over 23 years.
How do I know? well, I googled the characteristics of narcissim and that describes her very well, 'domineering' is the first adjective I'd use, and it goes downhill from there. She has been married enough times, I've lost count... but all I know is, she is toxic as he)) and I am not the only person to flee her grip. If you are too close to her, within her reach, you realize you are just an accessory to her, life is all about HER all of the time.
I also know, because the first husband I married was exactly like that. Now, you're thinking 'how dumb was that?' yes. It certainly was. I was worried I'd marry an alcoholic, as they say you tend to marry someone like your parents, or whomever you have unresolved emotional stuff over-- but turns out, I didn't marry an alcoholic. I married a narcissist.
He was less subtle than her--the difference between men and women, perhapse. But just as toxic and controlling, just as domineering and smothering. Got away from him 17 years ago, apparently my issues with narcissists got resolved, because second husband is 180 degree opposite, and life is much much better now.
Gotta learn from your mistakes, or life is will turn into a long dreary slog
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{the avatar is a Claude Monet}