My insane 92 year old mother yesterday told me that she thought that neither of us would survive having COVID this year and then suggested we commit suicide together since she can't do what she wants in the next year which is go on cruises. I have never given her any indication that I had any desire for any such thing. I think she's such a narcissist that her dying means I should die as well since why do I need to exist if she isn't around and she thinks it's unfair that I get to go on living if she's dead.
Did you ask your mother what on earth she was thinking? I mean, specifically, what on earth she was thinking in mooting the idea of you, her child, taking your own life.
Even coming from a narcissist, this is quite bizarre. She does recognise that you are her child, does she? - she's not slipping in time and thinking you're her best friend from school, or anything like that?
Hopefully the woman is NOT living in your home or vice versa. If so, get her into an ALF immediately. Surrounding yourself with such toxicity is very unhealthy and not necessary, either.
Sending you a big hug and a prayer for peace.