We would feel shattered

My friend once asked me to tell him about his faults because he wanted to improve.
I told him and since then he has not spoken to me. This happened in college three decades ago.
He asked. I told. He had initiated the transaction. Then when I gave it to him what he wanted, he detested me.
Why?
I don't know why. Don't have the answer. May be he actually wanted a stroke and expected me to say, "No, nothing is wrong. Don't go by what people say. Just chill.." I had broken his myths about him. I became the culprit.
However it gave me a great lesson. Never ever tell anything negative to anyone directly on the face even if the person has asked for it. He/she may be close or may just be an acquaintance. Doesn't matter. We all carry some myths about us. We won't like it if someone breaks them in front of us. We would feel shattered.

Always say: I haven't ever seen you with the eye of finding faults so don't really know. Yes, I can only say that if something is making you uncomfortable, then we can discuss and see how you can work on it..