Behind-the-scenes of HGTV’s hit show Flip or Flop, Tarek El Moussa was the husband from hell to his wife Christina El Moussa — and a source who witnessed it all exclusively tells In Touch just how ugly things got on-set before he filed for divorce.

The source says that Tarek often humiliated Christina with vulgar terms and inappropriate behavior while filming. “Tarek found humor in insulting his wife in repeated verbal attacks. Some of his bad behavior was even caught on camera [in footage that never aired],” the source explains.

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Tarek reduced Christina to tears on multiple occasions during tapings in 2016, calling her a “whore” and worse, the source reveals, adding that Tarek said he would perform a heinous violent act against Christina on more than one occasion. While he may have been joking, everyone else was appalled. In Touch is choosing not to run his exact words because they are so offensive.

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“He said things like that all the time and then laughed about it,” the source says. But no one was amused, least of all Christina.

“Tarek treated Christina like garbage,” the eyewitness exclusively reveals.

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Christina often ran away from him and cried in her car, the source adds.

“When she said the wrong thing and they had to do a retake, he got pissed. He often made her cry,” explains the source.

MORE: Christina El Moussa Breaks Silence Amid Infidelity Rumors

When asked about Tarek’s bad behavior, Christina’s rep told In Touch: “We will not be providing any comments” while Tarek, when asked a series of questions about his actions, refused to address any specifics.

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