Heather Locklear: Boozed-Up Star Batters Her Boyfriend

Heather Locklear got into a blow-out with her jailbird boyfriend before driving her Porsche into a ditch — and now The National ENQUIRER has learned she battered her beau in a hysterical outburst just weeks earlier!

Friends and family saw the collarbone-breaking crack-up as a turning point, and are now are begging the former “Dynasty” star to return to rehab — and dump shady ex-con Chris Heisser before her life spirals further out of control!

“This guy isn’t good for Heather’s sobriety,” dished an insider. Weeks before Heather’s crash on Sept. 14, “they got into a knock-down, drag-out brawl,” tattled the insider. “Heather went completely psycho and threw things at Chris! She was in a rage, violent and inconsolable. It was a mess!”

The 55-year-old former “Melrose Place” beauty hurt her arm while flinging things at Chris, but refused to seek medical help until the next day, said the insider. When Heather finally agreed to be taken to the hospital, she assaulted a nurse who was trying to treat her. Snitched a source at the scene: “She was completely out of control!”

In a bizarre twist, Heather posted a photo on social media showing her in bed with Chris on Sept. 4, days after the brawl. She added the caption: “My favorite person on Earth.” On the day she wrecked her Porsche, Heather was visiting Chris at his home in Thousand Oaks, Calif., where they again got into ugly argument, sources said.

“We’re sure that’s what put her in the insane state that caused the accident,” revealed an insider. As The ENQUIRER has reported, Heather suffered a booze- and Benzedrine-fueled breakdown over the Christmas holidays, and checked into the swanky Cliffside Malibu Rehab Center (left).

The former “Spin City” star — who has a stunning daughter, Ava (right), with second ex-husband rocker Richie Sambora — was carted off to rehab again after barricading herself in her home. It was her fifth known trip to a detox facility.

Sources said Heather turned self-destructive after splitting from her boyfriend of three years, plastic surgeon Dr. Marc Mani (left). That’s when she reconnected with Chris — a former high school sweetheart and professional motocross racer. “She was so low, she reached out to Chris,” said a pal. But he’s no Prince Charming.

In 2011, the former "T.J. Hooker" co-star's boyfriend had criminal charges filed against him including forgery, corruption of records, grand theft and personal-identity theft. His guilty plea led to two years in prison, and he still owes thousands of dollars for judgments against him. “The guy’s a bum!” declared one of Heather’s pals.

After her accident, Heather thanked fans for their concern, posting a social media message that said: “I’m home and good.” But friends revealed that’s far from the truth. “Heather has locked herself away, and isn’t talking to anyone,” a source claimed. “She needs help!”