It’s been just over a week since Prince Harry and Meghan Markle’s explosive tell-all interview with Oprah Winfrey. Yesterday, we reported that Oprah’s best friend Gayle King had said that while Harry and his brother Prince William had been in contact since the interview aired, she had been told that the talks had been “unproductive.”

Now, royal expert Angela Levin is telling US Weekly that the brothers will never have the same relationship that they once did.

“I don’t think they could ever have the same closeness that they had before,” Levin said.

She added that the only chance they have of mending their relationship may come this summer, when Harry returns to the United Kingdom for the unveiling of a memorial for their mother, Princess Diana.

“Prince Harry told me that William was the only person he could really trust and the only person he could say anything to because of their unique experience of losing a mother,” said Levin, who spoke with Harry extensively for her 2018 book Harry: A Biography of a Prince.

“They have a lot in common, although they’re very different personalities,” she added. “But I think it’s gone too far.”

Levin went on to say that William is upset over things that Harry and Meghan said about his wife, Kate Middleton, and is also hurt by allegations they made of racism in the royal family.

“He’s out there with a dark cloud hanging over him, as is Prince Charles,” Levin explained. “I mean, if you make an accusation like that, which is really atrocious to say that somebody in the royal family is [racist], for them to be able to respond to it — they can’t really. Their positions won’t let them.”

During their interview, Meghan claimed that she was hit with racism from within the royal family, claiming that an unnamed senior royal questioned how dark her then-unborn son Archie’s skin would be. Harry refused to name this family member, only saying that it was neither Queen Elizabeth nor Prince Philip. Meghan also claimed that she felt so isolated as a royal that she considered committing suicide at one point during her pregnancy.

The royal family responded two days later in a brief statement released by Buckingham Palace.

“The whole family is saddened to learn the full extent of how challenging the last few years have been for Harry and Meghan,” the royal family said in a statement obtained by Fox News. “The issues raised, particularly that of race, are concerning. While some recollections may vary, they are taken very seriously and will be addressed by the family privately. Harry, Meghan and Archie will always be much loved family members.”

When asked about the interview by a reporter last week, William replied, “We are very much not a racist family. I haven’t spoken to [Harry] yet, but I will do.”