Prince William and Kate Middletonmay seem like the perfect royal couple.

However, the pair haven’t been without their ups and downs over the years.

“A few people noticed because it’s a pretty unusual thing to do.

Queen Elizabeth and her grandson Prince William

She’d deliberately gone outside to take the call because she didn’t want to be overheard.

Kate was walking up and down and looking upset as if she was having an argument.

But she didn’t cry.

Queen Elizabeth and Prince William during an event.

Word went round that it was William and they were having problems,” the source continued.

“We didn’t think anything about it at the time.

But looking back, the call was definitely a girlfriend-boyfriend tiff,” the source explained.

Meanwhile, during the tense time, William was reportedly getting advice from his family.

Royal expert Katie Nicholl admitted that William turned to his family during the difficult time.

Both advised him not to hurry into anything."

However, the queen was said to be “disappointed” about the pair’s split.

Years later in 2010, William and Kate opened up about the breakup.

For her part, Kate confessed that the split made her a “stronger person.”

The two have now been married for ten years and share three children together.