It's only a matter of time before Prince Harry returns home to the UK, his family's former butler claims.
The Duke of Sussex, 37, is "not totally happy" with his life in the US, and is already missing his relatives and friends, Paul Burrell believes.
Princess Diana's close ally and confidant for ten years feels Harry is well aware he will need his brother Prince William one day.
The Sussexes have been critical of the Royal Family since moving to the United States two years ago.
The Platinum Jubilee celebrations mark the first time Meghan Markle comes face-to-face with the Firm since their explosive tell-all interview with Oprah Winfrey - and she is said to be feeling anxious about what's ahead.
Harry is already pining for home, Mr Burrell, 63, told OK! Magazine, and he says time could already be ticking on their US adventure.
“I don’t think he’s totally happy. I really don't," he said.
"I think he’s missing his family, I think he’s missing his friends and the lifestyle he had here in England.
"I think he’s given everything up for Meghan and I don’t know how long he’s going to be able to live that life.”
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He went on: “Harry’s going to need his brother one day. I think he will come back to this country with his tail between his legs.
"His brother will put his arms around him and say, ‘Welcome home, Harry'.
Harry is said to be looking forward to the Jubilee trip and could use the celebrations as a bridge building exercise.
But his wife Meghan Markle will be privately 'dreading' her reunion with the Royal Family and is likely to use her children as a welcome distraction, it has been claimed.
Royal author Duncan Larcombe has told OK! Magazine it will be a lot more challenging for her than husband Harry.
He says Meghan will use children to take her mind off things over the Bank Holiday weekend.
He said: "For Harry, he came back for Philip's funeral and the unveiling of Diana's statue last summer – and, of course, he was meeting the Queen and seeing his dad not that long ago.
"But, for Meghan, this is probably incredibly nerve-wracking. I will imagine that she with some reason, she will be dreading the return."
He added: "Having Lili with them when they return for the Jubilee is probably quite a good distraction."
To read Paul Burrell's exclusive interview with OK! Magazine, click here
