Stephen, 68, is an English conductor, who studied as an Organ scholar at Cambridge University.
Joanna divulged: “The truth is, if I wasn’t married to Stevie, I wouldn’t be married.
“I’ve always loved men, but I never thought: ‘Oh, I want to settle down.’ It simply didn’t cross my mind.
“But there was something different about him; I was drawn to his whole mindset – and his knowledge of music.”
The April 2023 issue of Good Housekeeping is now on sale.