Joining The X Factor panel would reportedly leave Sharon Osbourne feeling "emotionally torn".
The TV personality's Black Sabbath husband Ozzy recently admitted to a renewed battle with addiction and subsequently it was reported the couple's relationship was on the rocks.
It's rumoured Sharon is close to settling a £2 million to return as a judge to The X Factor UK, but the star is allegedly reluctant to finalise things.
"Sharon is trying to make Ozzy realise what he could lose if he ever touches drugs or alcohol again. She's not ready to move back home until she sees some real long-term change," a source told British magazine Closer.
"But she still deeply loves him and fears taking The X Factor job in the UK could be the final straw for their marriage. Doing the show would be so full-on, Sharon knows she wouldn't be able to devote her time to Ozzy."
Originally from Britain, the pair now lives in America, but Sharon has temporarily moved out while her husband gets his life back on track.
Returning to the UK show - which she left after four seasons in 2008 - could be a risky move for the 60-year-old's marriage.
"Even though she's not living with him now, she's still able to visit," the insider continued.
"But being thousands of miles away in the UK while he's in LA, would make it harder. She would feel so emotionally torn."
Despite publically acknowledging Ozzy's battle with addiction, the couple have so far claimed a divorce is not on the cards.
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