“Once he got over the anger of the way things turned out he was left with his brother’s absence,” an aide told Britain’s Sunday Times.
“They shared everything about their life, an office, a foundation, meeting together almost every day and there was a lot of fun along the way,” added the assistant, who was not named.
“He will be missed forever.”
With Prince Harry and his wife Meghan Markle decamped for California and relinquishing royal life, Prince William feels forever doomed to face the future as Britain’s next King without his brother by his side, have friends of the Duke told The Times.
Prince William “definitely feels the pressure now that it’s all on him – his future looks different because of his brother’s choices, it’s not easy.” a friend told the newspaper.
“It’s still raw,” agreed another friend, who also declined to be named.
“He is very upset by what happened, although he is absolutely determined that he and Harry’s relationship heal over time.”
Prince Harry, too, lamented the falling out.
“I love William in pieces,” he said last week. “We went through hell together and we have a common experience, but we are on different paths.”
The brothers will have multiple chances to see each other in person this summer, the Times profile noted.
The Duke of Edinburgh will be 100 in June; a statue of Princess Diana will be unveiled in July at Kensington Palace, marking what would have been her 60th birthday, according to the newspaper.