The 60-year-old 'X Factor' judge and her husband were living separately for a few months, but Ozzy recently moved back into the marital home in LA, reported Contactmusic.
The 64-year-old musician recently overcome his relapse into substance abuse.
"Ozzy will do anything Sharon asks as long as she'll take him back. He can't bear to live without her. But she's warned him, no more sneaking around behind her back doing drugs or drinking. Any slip-ups and she's out of there," a source said.
The couple are married for last 31 years.