It all started in an argument between Dappy and Luisa over apparently sexist comments made by the rapper.
"You sound like you’re a sexist, male chauvinistic bigot," the Apprentice star told him. “Your mum should be ashamed with your attitude to women, I bet she’d be absolutely disgusted and I think the nation watching this now would be in complete agreement with me.”
Speaking to The Sun today, Dappy's mother admitted she has been a bit embarrassed by some of her son's antics.
“There were a couple of bits I have found embarrassing to watch," Zoi Contostavlos said. “It was not the best side of him but they have to show every side.”
Discussing the row with Luisa over the weekend, she added to the newspaper: “I loved how emotional he became.
“He’s a very good actor and puts on a front. But when you see him cry, that’s the real man.”
Meanwhile, Zoi told the tabloid that one of the reasons Dappy signed up to the Channel 5 series was for his kids.
“He went on the show to provide for his children," she explained. “He loves them more than anything.
"He is a very sweethearted person, no matter what anyone says.”
CBB airs on Channel 5.