"Don't treat me like an idiot," Princess Diana urged Camilla when she confronted her about Charles' romance.

In order to face Camilla Parker about her extramarital relationship

with her husband, Princess Charles, Princess Diana mustered the courage.

At a party in 1989, the Princess of Wales spotted a chance to corner Camilla and ask her about her romance with the future King.

In Diana: Her True Story — In Her Own Words, royal writer Andrew Morton described

 how Diana asked Camilla for a "quick minute" before confronting her.

"It must be horrible for both of you and I apologise if I'm getting in the way,

but I am aware of the situation. Please don't treat me like a fool "

In extracts from the book that the Daily Mail is serialising, she told her.

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