The "shutters came down" on the marriage between Prince Charles and Princess Diana right after Prince Harry's birth.
The happiest that Princess Diana and Prince Charles have ever been in their marriage was during the final weeks of her pregnancy before welcoming their second son, Prince Harry. But when the late princess gave birth to him, she could see that their marriage was going downhill once again, and this time, it was irreparable.
"Charles and I were very, very close to each other the six weeks before Harry was born, the closest we've ever, ever been, and ever will be. Then, suddenly, as Harry was born, it just went bang, our marriage. The whole thing went down the drain," Princess Diana recalled while speaking to royal biographer, Andrew Morton, who included the interview transcripts in Diana: Her True Story—In Her Own Words, as reported by Harper's Bazaar.
The former Princess of Wales said she knew she was going to have another boy but kept it hidden from Prince Charles. She knew her husband was hoping they would have a daughter and she said, "He wanted two children and he wanted a girl."
When Princess Diana gave birth to Prince Harry in 1984, she said his reaction was: "Oh God, it's a boy."
"And he's even got red hair," he added, according to Princess Diana's revelations.
Right after Princess Diana gave birth to Prince Harry, her husband stayed with her for only a short while in the hospital before abandoning her, reports say.
While speaking of what happened after the prince's birth, royal photographer Ken Lennox recalled the moment where Prince Charles and Princess Diana posed for cameras with their newborn baby outside the St Mary's Hospital in London.
"I’m standing outside the hospital and Jimmy Gray who was a Daily Mail royal photographer at the time. He said to me 'Do you know he's [Prince Charles] going to leave here and go and play Polo?'" Lennox said in an ITV documentary, as quoted by Mirror.
Lennox thought it was impossible for Prince Charles to prioritize a game over his wife and their newborn. And so, he placed a bet with the other photographer. But roughly an hour after that, Lennox found out that Prince Charles was on a polo field.
Lennox also had to give up $66 (£50) for losing the bet because of the future king of Britain's love for the sport.
"I lost £50 because I couldn’t believe that a man with a newborn baby was going to leg it and play some daft game of Polo," Lennox said. "Doing something like that to a wife with a newborn baby was atrocious. If he thought he could treat his wife that, he was in deep trouble."
As for Princess Diana, she started realizing after Prince Harry's birth that she and her husband reached the final breaking point in their marriage, as reported by Harper's Bazaar. That was when "something inside me closed off," Princess Diana told Morton and added, "By then, I knew Charles had gone back to his lady."
Her biographer, Morton also called Prince Harry's birth a "symbolic moment" for her because it was the point where the "shutters came down" on their marriage.
"You can almost date the end of the marriage to that period," Morton said in the ITV documentary, according to Mirror.
Despite the turmoil in their marriage, Princess Diana and Prince Charles remained together until their separation in 1992. According to History, they took another four years to make their divorce official.