After 33 years of marriage Sharon and Ozzy Osbourne are on a hiatus that some believe began because of Ozzy allegedly fooling around. Sources say that Ozzy has remained sober for the last 3 years and that he has NOT fallen off the wagon.
The couple had also suffered a bit of a bumpy road in 2013 when Ozzy had returned to some bad habits. That is not believed to be the case this time.
source: http://www.people.com/article/sharon-ozzy-osbourne-split