Princess Diana was left “in pieces” by her husband Prince Charles’ relationship with Camilla. The royal, killed 27 years ago aged 36 in a Paris car crash, used to share her pain over the pair’s affair before she got divorced from the now-King with her long-time hair stylist. Her trusted hairdresser Richard Dalton was her personal crimper for a decade at the peak of her fame, and he has now broken his silence on their relationship for the first time in a new book called ‘It’s All About The Hair: My Decade With Diana’, which has been written by Renae Plant, one of the world’s leading Diana memor…