YOU’RE killing yourself!” With those shocking words, Sharon Osbourne walked out on her 30-year marriage to madman rocker Ozzy – finally sickened by his out-of-control drug use.

Although the Black Sabbath frontman recently revealed he has been sober for several weeks, his recent 18-month relapse – which followed 10 years of clean living – has sent Sharon over the edge.

THE TWO HAVE BEEN living apart for more than three weeks, and some sources believe the marriage may not survive.

Up until recently, “Ozzy was up to his old ways, gobbling down a bunch of pills and then chasing them with bottles of booze, beer, brandy, you name it,” revealed a source. Insiders say the rocker was taking up to 300 pills a week and downing bottles of hard liquor as he battled depression over band mate Tony Iommi’s battle with cancer and son Jack’s diagnosis with multiple sclerosis.

Ozzy, 64, took to Facebook to address his spectacular fall off the wagon, posting on April 15: “For the last year and a half I have been drinking and taking drugs.

“I was in a very dark place and was an a***hole to the people I love most, my family.”

He also went on to insist that he and Sharon are not divorcing and that he’s “just trying to be a better person.”

According to the source, Ozzy moved out into a rented house and Sharon is staying at The Beverly Hills

 Hotel while she prepares to move into another home.

Not long after their split, Sharon spent a long weekend in Cabo San Lucas, Mexico. While she was there, “Ozzy texted her constantly,” said the source.

“Sharon told Ozzy that it’s all well and good for him to be a month and a half sober, but she won’t go back to him until he’s on the wagon for at least three or four months.

“In the meantime, she’s been spotted out without a wedding ring.”

SHARON, 60, HAS STUCK BY OZZY IN TOUGH TIMES before. In 2003, he claimed that he was over­prescribed a host of powerful antipsychotic and tranquilizing drugs, which lead to a massive 42-pill-per-day habit. He later said that he was also prescribed Valium, Dexedrine, Mysoline, among other narcotics.

This time, Sharon decided she’d had enough.

“She was convinced that Ozzy was killing himself, and she couldn’t stand by and watch him do it any longer,” the source added.

“She didn’t want to move out, but she felt she had no choice. Her tough-love stance has probably saved Ozzy’s life.”