Princess Diana is pictured during a visit to Sydney, Australia on Nov. 1, 1996. Torsten Blackwood/AFP/Getty Images

She had just divorced Prince Charles and officially ended that chapter in her life. However, a few days after ending her marriage to the future King of England, another man is the one who was actually making Princess Diana cry, according to a new report.

In his memoir, “The Way We Were: Remembering Diana,” Princess Diana’s personal butler Paul Burrell revealed that just 18 days after the divorce was finalized, she was actually “sobbing uncontrollably” and was “vulnerable and upset.” However, the upset wasn’t over her divorce, but instead over her romance with Pakistani heart surgeon Dr. Hasnat Khan.

Burrell recalled receiving a “frantic” call from Kensington Palace on September 15, 1996, and rushing to Princess Diana’s apartment there because she was frantic that she couldn’t reach Khan, who she feared had gone missing.

“I can’t find him. I can’t find him! I don’t know where he is. I’ve tried to contact him for five days now, and left messages everywhere,’” Burrell recalled the Princess saying, before asking him to go out and look for the doctor and deliver a message for him.

He then wrote that he later located Khan in a wine bar, “oblivious to the upset he had caused.”

Still, everything wound up being fine, and Burrell revealed that Khan was the man who Princess Diana truly fell in love with, and even her friends felt the pair would have a bright future together.

“The inner circle of her [Diana’s] friends referred to as ‘The One,’’ he wrote.

However, the couple’s romance wasn’t meant to be, as it’s been previously reported that they eventually parted ways because he didn’t want a life in the spotlight, something that would be unavoidable for Diana, and a move to Pakistan was out of the question.

Diana later went on to find love with Dodi Al-Fayed, the son of Egyptian billionaire Mohammed Al-Fayed. The pair were together in Paris when they died in a tragic car accident in August 1997, after they were pursued by photographers.