Made in Chelsea' s Emily Blackwell dumps and brands Harvey Armstrong a "lying piece of s***" after she caught him cheating on her in an explosive upcoming episode.
In scenes yet to be aired on the reality show, the star, 26, confronts her boyfriend of two years after she sees a photo of him with his arm around another woman in a club.
In the dramatic face-off, a heartbroken Emily calls Harvey, 27, a "liar" and then tells him to "be a man for once", before he admits to betraying her.
Harvey's infidelity is first questioned after their co-star Ruby Adler, 26, saw Harvey arriving at an after party with a mystery woman - but the entrepreneur insisted it was purely platonic between the two of them.
However, alarm bells starting ringing for Emily when she discovered Harvey left Tristan Philips' party at 6am but didn't return to the flat they share until 8am.
The entrepreneur claimed he "only" kissed the anonymous woman, but other castmates believed he went much further.
In the dramatic scenes, Emily shouts: "You've done more than a kiss Harvey and admit it now. F***ing be real, be a man for once you t***. Admit it… admit what you've done. After two years, f***ing admit it.
"You don't kiss someone if you love someone you piece of s***. Are you kidding me? You threw our two year relationship away for that?"
But Harvey tells Emily is "the girl of his dreams" and said he is "kicking himself".
Emily, who started dating after Harvey and her friend Sophie Habboo split, was sent a photo of Harvey with his arm around the other woman because she had "complained about being cold".
She told fellow MIC star Tiffany Watson: "Someone sent me a picture of him sitting on Tristan's sofa with his arm around a girl – a random girl that I didn't know – he said to me that she was cold. I literally said 'do you think I'm going to believe that.'"
Emily had grilled Tristan and Reza Amiri-Garroussi over Harvey's whereabouts, but both dodged the questions.
It was then revealed Tristan and Reza had removed their microphones to discuss Harvey's behaviour in the bathroom.
Earlier this year MailOnline revealed Emily and Harvey split in February after Harvey was partying too much.
A source told the publication Emily was "devastated" at the time, especially as they'd moved in together.
Made In Chelsea airs on Mondays on E4 at 9pm.
