Prince William, Kate Middleton and Prince Harry
Prince William, Kate Middleton, and Prince Harry during The Patron's Lunch celebrations for The Queen's 90th birthday at The Mall on June 12, 2016, in London. Getty Images/Jeff Spicer

Prince Harry made shocking revelations about Prince William and Kate Middleton’s relationship on their wedding day.

Prior to marrying Meghan Markle, Prince Harry was very close to his brother, Prince William, and sister-in-law, Middleton. The three were often seen together carrying out their royal engagements earning them the moniker “the royal trio.”

Due to their special bond, it wasn’t surprising for Prince Harry to share juicy details about the couple. On the Duke and Duchess of Cambridge’s wedding day, the Duke of Sussex made the guest laughed by impersonating how his older brother called Middleton with their endearment.

“Famous for his mimicry, Harry impersonated his brother calling Kate ‘Babykins’, to much laughter from the guests,” Katie Nicholl wrote in her 2017 biography “Harr: Life, Loss, and Love.”

Prince Harry didn’t stop there, he also made a shocking confession about the lack of romantic side of the second-in-line to the throne.

“William didn’t have a romantic bone in his body before he met Kate, so I knew it was serious when William suddenly started cooing down the phone at Kate,” Markle’s husband said.

Prince William and Middleton dated for almost a decade before they finally tied the knot. The couple had an on-again, off-again relationship because the royal prince refused to be nailed down.

The future king reportedly told his friends that “all the fun has gone” and “I don’t want to be nailed down.” At the time, Prince William was only 24 and wasn’t ready to settle down. However, he eventually realized that he could not live without Middleton. When they rekindled their romance after that split, they never broke up again.

Earlier this year, there were rumors that Prince William cheated on Middleton with a family friend, Rose Hanbury. However, according to an insider, the couple is not splitting, but the speculations rocked the palace and their marriage.

Despite the rumors, Prince William and Middleton continue to carry out engagements together and are not showing any sign of a strained marriage. They were last seen together days ago enjoying a romantic lunch after visiting Cumbria.

The Duke and Duchess of Cambridge didn’t spend too long at the hotel where they enjoyed tea. Middleton revealed that they were in a hurry because they would still pick up Prince George and Princess Charlotte from school.