The Osbournes publicly denied divorce rumors in April 2013 but admitted to working out issues in their marriage.
"We're not getting divorced," Sharon, 63, said three years ago on "The Talk," which she co-hosts. "However, am I happy? No. Am I upset? Yes I am. I'm devastated right now."
During that time, Ozzy wrote in a message on Facebook that the couple was "not divorcing" but that he had been "drinking and taking drugs" and was "trying to be a better person."
"He's been using alcohol and prescription drugs for the past year and a half," Sharon said. "Everybody knows he's been struggling with this his entire life. I never knew he was using prescription drugs. I knew he was drinking occasionally, but I didn't realize to the extent."
She continued, saying that outlets had "distorted" the couple's marriage in the media: "We're dealing with it. We've dealt with worse. We're dealing with it, and this too shall pass."
Ozzy later pledged to remain sober.
Sharon and Ozzy Osbourne first met in the '70s when Sharon was working for her father, who managed Ozzy's band, Black Sabbath. Sharon later became Ozzy's manager.
The two were married on July 4, 1982. They have three children together -- Aimee Osbourne, 32, Kelly Osbourne, 31, and Jack Osbourne, 30.