Heather Locklear and her fiancé Chris Heisser got into a public fight just two days before she was hospitalized on a 5150 hold — and cops were called to the scene, Breaking Celebrity News can exclusively report.

On Friday, June 15 at 9 pm, cops were called to a parking lot just down the street from the troubled actress' home in the Westlake Village area, the Ventura County Sheriff's Department confirmed to Breaking Celebrity News.

"The call came in describing an incident involving a female and a white Porsche," a spokesperson for the Sheriff's Department told Breaking Celebrity News. (The 56-year-old mom infamously got into a wreck last year in her Porsche.)

She and Heisser were spotted "arguing very loudly" in the lot, a law enforcement source told Breaking Celebrity News.

"It was explosive, and everyone was looking to see what was going on," the source said. "Cops were everywhere."

However, the fight ended quickly, and no one was arrested.

Another source told Breaking Celebrity News that Heisser couldn’t handle Locklear's erratic behavior earlier that night when she had a meltdown at her house, accusing him of cheating.

“She was driving like a maniac and followed him down the street,” said the second source.

Then, two days later, Locklear's mother called 911 and the star was rushed to the hospital for psychiatric treatment.

An insider told Breaking Celebrity News she physically attacked her parents in the chaos.

Now, her friends and family believe she relapsed after spending two months in rehab earlier this year.

She recently pleaded not guilty to beating a police officer and Heisser in February.

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