The tailor was seen making the confession to his mother during Sunday night's (9 June) episode of the Essex-based reality show.
Sitting in a restaurant, Mario said to his mother: "I have something to admit to you, mum. I did cheat on Lucy."
"You're kidding me?" replied his mum. "Why?"
"I don't know," said Mario.
Mario's mum seemed disappointed in her son's revelation, saying: "That's just awful. You don't do that to anybody. I certainly didn't bring you up like that. You have to treat people with a bit more respect. How did Lucy find out about all this?"
According to Mario, he heard from Ricky Rayment that Lil Chris was the one who'd told Lucy about his cheating, describing his former friend as "pathetic" if that turned out to be true.
After his mum confessed she was shocked, Mario told her not to worry, he would "deal" with Lil Chris himself.
Yikes. Sounds ominous.
While Mario's mum was fairly shocked by the cheating revelations, his ex-girlfriend Lucy seemed rather pleased, cryptically tweeting during the show: "Finally!"
She later added: "Surely I just had the right to know! Anyways a great episode! Xx."
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