Prince William believes Prince Harry has "crossed a line" by continuing to disrespect their family, according to a close friend.
With William approaching his 40th birthday next week, the microscope continues to be on his strained relationship with his brother, reports the Mail Online.
Sources close to the second in line to the throne reveal that there is still a long way to go before they can ease the frosty tensions between the pair.
"The rift with his brother has been really hard on William," said one source. "It’s as if he is mourning the relationship he has lost.
"People don’t realise he sort of fathered Harry to a degree. He wasn’t just his brother, he was also a parent, always trying to pull Harry back from the brink.
"But make no mistake, he’s angry. He believes Harry has disrespected the Queen and their family."
The tension could intensify, too, with Harry releasing his memoirs later in the year as part of a multi-million deal.
William remains protective of his younger brother, though, and will keep the door open to him forever according to sources.
Another friend believes Harry always had reservations about life with the Institution and hinted that the pressure of living and working with William put an enormous strain on their relationship. They went on to add that Meghan Markle complicated matters, too.
William is reportedly still angry over his wife, who he believes was massively disrespected by Meghan when she claimed in last year’s interview with Oprah Winfrey that it was Kate who made her cry before her wedding – not the other way around.
His relationship with his brother is in stark contrast to other aspects of his life with his marriage to Kate Middleton as strong as ever and fatherhood bringing contentment.
His relationship with his father, Prince Charles, also seems to be in smooth waters after it was seen as turbulent over the years, especially in his early teens.
Asked whether they thought that William would repair his bond with Harry, a friend commented, saying William was 'very principled' and thinks Harry crossed a line.
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