What is the most painful thing someone has said to you?

Conversely to one of my previous posts, what is the most painful thing someone has said to you? I think for me it was the words "I see things in you I don't want to see in my children". Really came out of nowhere from the relationship which at the time I thought was going fairly well. Still, if nothing else you learn you need to grow from things like that.
What is the most painful thing someone has said to you?
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