Dead to me

Mr

What is something that someone has said to you in the past that has made that person “dead to you”? Did you ever forgive them? Could you ever?

I was thinking about it after a so called friend got really rude with me about how I only have one child. Told me that I better socialize him properly so he doesn’t have issues. Pardon the French but that bitch is dead to me.

Has anyone ever said something to you that has had that effect?