SiriusXM axed Bethenny Frankel’s radio show, “B Real with Bethenny,” after she threw a diva fit at a VIP Coldplay concert in the Hamptons that was sponsored by the radio giant and chucked a drink on other guests.

“They were prepared to give Bethenny her own show, but they ripped up the contract after that night,” a source said. Frankel was one of the 150 important guests, which included Jay Z and ­Beyoncé, at Coldplay’s Aug. 7 gig at the intimate Stephen Talkhouse in Amagansett. Despite the VIP crowd, she deemed herself the most important guest there and threw a sticky drink over three women who were blocking her view.

A witness told us: “Bethenny started poking and pushing them. Then, when they didn’t move, she went to the bar and got a mixed drink and threw it over them.”

A source close to Frankel told us at the time, “It was a crush . . . and very hot. People were jockeying for a view. It looked like this woman, who vehemently refused to move, needed some cooling off . . . so Bethenny tossed some water on her.”

We’re told one woman, whose white dress was drenched, left in disgust and later complained to Sirius bosses. Sources told Page Six another woman who was rudely splashed was Lisa ­Pevaroff-Cohn, the wife of Goldman bigwig Gary Cohn.

Frankel announced three days later, on Aug. 10, that her weekly show, which started in May on Andy Cohen’s channel, was taking a summer break and she’d be back in full force in September. Except she didn’t come back at all.

Sirius insisted Frankel’s behavior had nothing to do with its severing ties with her. “When we announced ‘B Real with Bethenny’ . . . back in April, it was as a limited-run weekly series. We often work with hosts [on] limited-run series to develop . . . with the hope they can lead a daily show . . . That requires a great time commitment from the hosts. Bethenny is busy with Bravo and other projects, and we were unsure whether, in the long run, we could get enough of her time for a five-day-a-week show,” a spokesman said.

A rep for Frankel did not comment.