Sharon Osbourne will release the fourth installment of her autobiography in November.
The promotional material for the book, titled "Coming Home", promises to detail "some of the most hardest years she's experienced: the anguish of a broken marriage and Ozzy's infidelities, the constant spectre of drug abuse, the loss of friends and betrayal of colleagues, and her ongoing battles with mental health crises."
Two years ago, Ozzy said that he was "terrified" Sharon would leave him after she learned of his extramarital affairs six years ago.
After Ozzy's affair with celebrity hairstylist Michelle Pugh was made public in May 2016, he underwent therapy for sex addiction. Sharon and Ozzy later reconciled and they even renewed their vows.
Asked in an interview with "Good Morning Britain" if he was amazed he and Sharon were still together, Ozzy replied: "I am. I've been a bad boy at times."
Sharon added: "It's like a Shakespearean play, our love story. Ozzy's has been a right old [expletive] with women."
Pressed about whether he feared Sharon would leave him the last time he was caught cheating, Ozzy said: "Oh, absolutely. I was terrified."
Asked if he is addicted to sex, Ozzy said: "I think it's another fix. If you're a junkie, like I was, anything that alters your mind, you've gotta find it. I didn't love any of these people. I've learned a lesson."
As for how close she came to kicking Ozzy out, Sharon said: "I was just really broken in every sense.
"I said to Ozzy, 'If you ever do this to me again, I'm gonna cut your hair off or I'm gonna cut all your clothes.'"
Ozzy chimed in: "I wish I hadn't done this stupid thing that I did, and that's the truth, because you never know what you had until you've lost it. And I thought I'd lost it, big time."