With a brood of three and eight years into their marriage, Prince William and Kate Middleton’s relationship is a perfect picture of a happy royal couple. But there was a time before they tied the knot that the Duke of Cambridge had to take a serious look at their relationship and decide if it can stand the test of time.

As Prince Harry’s older brother, Prince William also wanted back then for the Duke of Sussex to have a stable and happy relationship with his future wife. Thus, when Prince Harry and Meghan Markle’s relationship appeared to be getting serious, William might have questioned Harry for his seemingly hasty decision to get married, royal family experts believed.

“We don’t actually know what went on between the two brothers, but it would not be unreasonable for an older brother to question a younger brother,” royal commentator Angela Mollard spoke on the “Royals” podcast in June.

Compared to William and Kate, who married ten years after they met, Harry and Meghan’s story can be considered as a whirlwind romance. “I think he was concerned Harry hadn’t known Meghan for very long, and that they were marrying,” the royal family observer explained.

Prince William knows firsthand how a broken marriage can negatively affect a person. He was only 13 years old when Prince Charles and Princess Diana divorced, and he, along with the even younger Harry, was devastated by the unfortunate turn of events.

Experts believed that William simply didn’t want Harry to go through a marriage failure once more, especially with the latter’s struggle with mental issues. “A younger brother who has spoken about his own vulnerability, about his own grief, about mental health issues, it wouldn’t be unreasonable I think for William to sit down with his brother and question [him],” Mollard said.

However, Prince William’s concern over Prince Harry’s well-being might have backfired as the latter might have misunderstood his older brother’s intention. “I think it was meant very kindly in a well-meaning way but Harry was very defensive of Meghan and took it completely the wrong way and said to William something along the lines of, ‘You’re trying to destroy this relationship before it’s even started,’” The Sun’s royal correspondent Emily Andrews said on Yahoo UK’s “The Royal Box.”

Whether the questioning or the misunderstanding actually happened or not, it’s good to note that Prince Harry and Meghan have proven over time that their decision to tie the knot was right. More importantly, Prince William and Prince Harry do not seem to have any issues at all based on their recent public appearances.

Prince William, Prince Harry, Meghan Markle and Kate Middleton Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, Prince Harry, Duke of Sussex, and Meghan, Duchess of Sussex, attend a service marking the centenary of WW1 armistice. Paul Grover- WPA Pool/Getty Images