Prince William, Kate Middleton's heartbreaking split: Details revealed

Kate Middleton and Prince William's romance was not always the fairy tale as the couple, now parents of three, once called it time on their relationship.

The dramatic circumstances behind William and Kate's brief breakup has been detailed by a friend of William. The things could have been very different for the couple's budding romance in the early days of their relationship.

Things took a turn when King Charles' eldest son William unexpectedly canceled their New Year's Eve plans that year, signaling trouble. Shortly after, the Prince called Kate and broke up with her, citing the need for "a bit of space" and uncertainty about a proposal.

Jobson's new book "Catherine, the Princess of Wales" reveals: "In an emotionally charged 30-minute conversation, they both acknowledged they were on 'different pages."

However, William was said to be in tears after seeing Kate letting loose and having a blast on her nights out without him after their break-up in 2007.

Kate was once the centre of attention in London's party scenes and had guys like Charles Morshead and Henry Ropner by her side. However, they were just 'mates'.

A friend of William, at the time, described how the royal was feeling seeing Kate partying without him, saying: "Even if they were just pals, it was difficult for William seeing Kate out, letting her hair down on the arms of other men. He increasingly began to realise how much he missed her company." 

Following the pics, it emerged that the once estranged couple were quickly hanging out together again and decided to rekindle the flame just two months after calling it quits, according to the Mirror.

At a bash celebrating the end of his military course, William was then seen planting a smooch on Kate that set the room on fire. As the party wound down, the prince pulled Kate close for an intimate moment.

One person revealed: "William didn't care that people were looking. At midnight, he started kissing her. They just couldn't keep their hands off each other. His friends were joking that they should get a room together."

A senior royal insider revealed: "The relationship may look to have run its course to those on the outside. But to those who know William best, it is still clear he loves her very much indeed."

And a pal close to Kate shared: "She knows if they do get back together permanently, there'll be no turning back. There will have to be an engagement and then marriage."

Reflecting on their brief split in a later ITV interview, William said, "We both were very young...it was just sort of a bit of space and a bit of things like that and it worked out for the better."

Finally, William and Kate's rekindled romance led to an engagement in 2010 and a grand wedding at Westminster Abbey on April 29, 2011.