toxic friend

Why do we have a hard time with boundaries? Many of us, especially women, were raised to be people-pleasers and caregivers.

My friend lies and uses any available information to insult people to their faces or smear them to others to drive wedges between people. I can't trust her!

I'm seriously considering exiting a friendship. My friend is in an emotionally abusive marriage. I don't want to be a horrible friend but I want out.

How do you break up with a best friend?