Gene Simmons's partner storms off 'Joy Behar' interview

Gene Simmons's partner Shannon Tweed stormed out of an interview on The Joy Behar Show after rowing with the KISS rocker.

The couple, who have dated for more than 20 years, began to bicker openly after Behar showed a clip from their reality show Gene Simmons Family Jewels, wherein the 'God of Thunder' singer posed seductively with a pair of young women for a photograph.

As Behar prompted Simmons to defend his behaviour, Tweed said: "He's a pig and I don't like it. I'm done."

Simmons attempted to calm Tweed by crediting her with accepting his failures, which appeared to cause the model to grow more visibly upset.

After Simmons made a joke about his famed sexual history, Tweed slapped him on the shoulder and removed her microphone, saying as she walked off the set: "It's so rude of you to joke about [this]."

Behar questioned a seemingly stunned Simmons as to whether he is headed for a split, to which he replied: "I hope not."

The full Joy Behar Show interview airs tonight at 10pm ET on HLN, while Gene Simmons Family Jewels airs Tuesdays on A&E.

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Watch Shannon Tweed's abrupt exit from The Joy Behar Show below: