Princess Diana previously described her union with Prince Charles as a “marriage from hell.” During their 11-year marriage, the Princess of Wales wanted nothing more than to live a normal life.

When she was still alive, she confided in one of her best friends from Australia, Marie Sutton. The late royal shared secrets with the Australian national and some of her secrets have been taken by Sutton to her grave. She passed away last week in a Sydney hospital.

But while Sutton was still alive, she teamed up with showbiz reporter Craig Bennett for her memoir. One of the stories that Sutton shared with Bennett had to do with Princess Diana.

He said that there was so much controversy surrounding Princess Diana’s trip to Australia in the 1980s. But despite all of the problems, the engagement was still regarded as a huge success.

On top of this, Princess Diana and Sutton spent so many hours chatting on the phone, with the mom of two pouring her heart out to one of her closest confidantes.

“When Marie asked me to write her book, we had a long lunch and she showed me the correspondence. Beautiful notes from Diana, and many with eye-popping revelations. Diana confided her life was torture. It was a marriage from hell. How she longed for a normal life. The saving grace being her boys, William and Harry,” Bennett said.

According to Bennett, Princess Diana also told Sutton that Prince Charles wasn’t the love of her life but it was actually Dr. Hasnat Khan. The journalist also said that Sutton was offered $2 million for her so-called “Diana Diaries,” but she refused it. As such, whatever secrets Princess Diana shared with her could never be exposed.

But before Sutton’s death, Bennett couldn’t help the Aussie to comment on Princess Diana’s sudden passing.

“When I asked her about rumors of skullduggery surrounding Diana’s death, Marie froze. She refused to comment on speculation it may have been murder. But what she didn’t say spoke volumes,” he said.

Prince Charles and Princess Diana
Princess Diana and Prince Charles attend a welcome ceremony in Toronto at the beginning of their Canadian tour on Oct. 1, 1991. Getty Images/Jayne Fincher