• Prince Harry does not regret his decision to step back from his role as a working royal, royal expert Christopher Andersen claims
  • The author believes Harry is "digging in" following the royal family's treatment of his family during the Platinum Jubilee
  • Andersen claimed any attempts by Prince Harry and Meghan to "mend fences" with the royal family were unsuccessful

Prince Harry is likely "more determined" to distance himself and his family from the royals after the Platinum Jubilee, a royal expert has suggested.

Christopher Andersen, author of "Brothers and Wives: Inside the Private Lives of William, Kate, Harry and Meghan," weighed in on Prince Harry and Meghan Markle's recent reunion with the royal family during an interview on Us Weekly's "Royally Us" podcast.

Podcast co-host Christina Garibaldi asked Andersen if he believes part of Prince Harry regrets his decision to leave royal life, noting the "divide" between the Sussexes and the senior royals when they celebrated Queen Elizabeth's Platinum Jubilee in the U.K. earlier this month.

"No, I would say that [Harry] is digging in," Andersen claimed. "I think, if anything, this kind of treatment at their hands just makes them more determined to live a separate life."

The royal author added that Prince Harry likely would have liked things to "go more smoothly" and hoped that the royal family would react "in a less belligerent way" to his and Markle's royal exit.

"Nobody wants to see a family in turmoil, but when has the royal family not been in turmoil?" he added. "They never disappoint when it comes to drama."

Prince Harry and Markle flew to the U.K. with their two children, Archie, 3, and Lilibet, 1, earlier this month to join the royals for the four-day Platinum Jubilee festivities. The couple kept a low profile throughout the celebration and were not seen publicly interacting with Prince Harry's immediate family.

Andersen claimed that there's still "a lot of bad blood" between the couple and the royal family, more than two years after the Duke and Duchess of Sussex stepped back from their roles as senior working royals and moved to California.

The royal expert claimed that any attempts by Prince Harry and Markle to "mend fences" with other members of the royal family were unsuccessful.

"They went there hoping to mend fences and ran into a brick wall," he claimed of the couple's recent trip to the U.K. "I thought that there would be an opportunity for [Harry] to show up there to show the solidarity [and] the future of the monarchy. … I'm sure they expected to have a warmer welcome than what they received."

Before they returned to California, Prince Harry and Markle extended an olive branch to Prince William and Kate Middleton by inviting them to their daughter Lilibet's first birthday party on June 4, Page Six reported. But the Duke and Duchess of Cambridge, who attended at least two Jubilee events that day, reportedly declined the invitation.

"Things are still fraught — William is still wary of spending any time alone with Harry as you never quite know what may be reported back afterward," an unnamed U.K.-based insider told Page Six.

But while they could not celebrate Lilibet's birthday with the Sussexes, Prince William and Middleton made sure to wish Prince Harry and Markle's daughter a happy birthday on social media.

"Wishing a very happy birthday to Lilibet, turning one today!" they tweeted on June 4.

The queen's grandson Prince Harry and his American wife Meghan will watch the Trooping the Colour after jetting in from California
The queen's grandson Prince Harry and his American wife Meghan will watch the Trooping the Colour after jetting in from California POOL via AFP / John Stillwell