People who make me feel like crap or worse off then when I encountered them consistently are written off and out of my life
Doesn’t matter if its family, nobody is entitled to your attention and suffering and it does nobody any real good for you to succumb to the inevitable dysfunction it creates in your life and relationships and also material conditions.
If someone tells you something, that something does not get repeated without asking for permission first. People don’t have to say “can I tell you this in confidence?” Absolutely everything is kept in confidence.