Last year, Prince Harry and Meghan Markle left royal life behind and moved to Montecito, Calif., where they're currently raising their two kids.
The move tore the family apart, and things haven't been the same since, but Princess Diana's former secretary Dickie Arbiter believes that all of the turmoil would have been avoided if the Princess of Wales was alive today.
Arbiter was discussing Harry and brother Prince William's broken relationship when he made the bold claim, and he insisted that unlike her ex-husband Prince Charles, she would have been able to help the boys mend ties.
"She would have banged their heads together and told them to sort it out," Arbiter claimed. "The rift would never have got this bad and I think Harry would still be here in the U.K. if Diana were still around."
Since moving to America, the Duke of Sussex has only returned home to England on two occasions: in April, he made a short trip to attend grandfather Prince Philip's funeral, and at the end of June, he flew back once more to help unveil a statue of his mother on her July 1 birthday.
In the docuseries The Me You Can't See, the father-of-two explained that flying back home triggers his anxiety.
"For most of my life I always felt worried, concerned, a little bit tense and uptight whenever I fly back into the U.K., whenever I fly back into London," he admitted.
"I was like 'Why do I feel so uncomfortable?' And I could never understand why. I was aware of it. I wasn't aware of it at the time I was younger but after I started doing therapy and stuff like that. I became aware of it," he revealed. "For me, London is a trigger because of what happened to my mum."
To cope with his problems, the Duke of Sussex attended therapy and utilized EMDR (eye movement desensitization and reprocessing).