BATTERED BRITNEY'S SAD NIGHTMARE OF ADDICTION & ABUSE

TRAIN wreck Britney Spears’ explosive marriage to young hunk Sam Asghari has been shattered by a devastating mix of domestic violence and addiction, say insiders.

Mental health experts tell The National ENQUIRER the bipolar pop princess, 41, feels chronically starved for love, which has triggered bizarre sexy shenanigans and toxic relationships as she desperately searches for a strong man who can fix everything that is wrong in her life.

“She’s trying to fill a void created when she was thrown into the spotlight as a child star,” says eminent psychologist Dr. Gilda Carle. “This has manifested itself in endless, embarrassing, sex-fueled episodes and poor choices of partners that inevitably end badly.”

Britney’s third marriage, to former fitness trainer and showbiz wannabe Sam, 29, fell apart after 14 months amid reports of physical abuse — on both sides!

“There is no question Britney suffered at Sam’s hands,” reveals a friend. “She often had to use her makeup skills to cover up the horrible effects of their blowouts.”

Incredibly, the 6-foot-2, 196-pound muscleman is accusing 5-foot-4, 123-pound Britney of battering HIM! Although Sam’s buddies insist he’d never raise a hand to his estranged bride, the dueling charges of physical abuse are now sure to be a particularly dirty highlight in ugly divorce hearings.

On Aug. 16, Asghari filed to end the troubled marriage. Insiders tattle he’s expected to use abuse allegations in an attempt to bust his prenup and grab a big chunk of the Toxic songbird’s $60 million fortune.