Here is a look at what happened on their honeymoon, and what went wrong between the two.

As many now know, the circumstances leading up to their wedding day were less than ideal.

I think Charles didn’t want to go into the wedding on a false premise.

King Charles and Princess Diana

He wanted to square it with her, and it was devastating for Diana."

Diana reportedly wanted to call off the entire wedding, but the show had to go on.

The two had announced their intention to marry only five months prior, during an interview with the BBC.

King Charles and Princess Diana

Diana later claimed that Charles' dismissive comment was “traumatizing.”

The two boarded the ship in Spain and immediately set sail for Greece and the surrounding islands.

The pair weren’t the only royals to use the yacht for their own purposes.

King Charles and Princess Diana

Other royal couples also boarded the yacht for their own honeymoons.

In 1997, the yacht was decommissioned during an emotional ceremony that even brought Queen Elizabeth to tears.

If he went without his daily phone call, he would become tetchy and ill-tempered."

King Charles and Princess Diana

The honeymoon was when Diana spied a pair of cufflinks that belonged to Charles.

She reportedly thought the interlocking Cs were Chanel before realizing that they were initials for Charles and Camilla.

As Diana told Panorama, “On our honeymoon, cufflinks arrive on his wrists.

King Charles and Princess Diana

Two C’s entwined like the Chanel ‘C’.

So I said, ‘Camilla gave you those, didn’t she?’

He said ‘Yes, so what’s wrong?

King Charles and Princess Diana

They’re a present from a friend’” (viaReader’s Digest Australia).

In fact, Charles did quite the opposite.

As reported byReader’s Digest Australia, this sent Diana spiraling.

King Charles and Princess Diana

She told Morton that this “triggered something in me” and “I was desperate, desperate.

I remember the first time I made myself sick.

I was so thrilled because I thought this was the release of tension.”

King Charles and Princess Diana

He came back to find she’d destroyed his painting and all his materials."

Of course, it isn’t known if Diana began the interviews before or after the trip.