And Kerry, who shares seven year old daughter Dylan-Jorge with George, got emotional as the show's frontman Ant Middleton interrogated her about the former relationship after she failed the CS gas test and aerial walk challenge.
"I can tell you're stuck somewhere. I don't know f***ing know where you're stuck, but you're stuck somewhere. Where are you stuck?" Ant grilled her in scenes filmed last year.
Kerry, 40, responded: "My mister died last year of a drug overdose. He was really abusive, and it just took me back to feeling really worthless."
When Ant asked what exactly it was that took her back, Kerry explained that it was the shouting during the challenges.
Ant explained that they were just trying to encourage her through the gruelling challenges before asking if her children had witnessed George abuse her.
Nodding her head while looking down, Kerry said through tears: "They heard the shouting and saw the black eyes."
Elaborating on her relationship with George further, Kerry later told the camera: "When George died, there was so many mixed emotions.
"I was so angry. I was so angry at him. 'How f***ing dare you die? Putting me and the kids through all that s***, and then you just die? The worst conversation I've ever had to have was with my five year old to tell her her daddy had died.
"How do you explain that to a baby? A t**t as he was, you know, he was still a dad. So now I've got to do right by my kids because they've been through so much already."
An inquest earlier this month heard that the Atomic Kitten singer's ex died age 39 in July 2019 when he collapsed from a seizure after "biting into a ball of cocaine at the Holiday Inn hotel in Sutton Weaver, Cheshire.
George was rushed to the hospital but was later pronounced dead.
Kerry and George were married from 2014 to 2017 and welcomed daughter Dylan-Jorge together in 2014.
Mother of five Kerry is now set to wed Ryan Mahoney, 32. The pair got engaged in August 2020, with her children involved in the proposal, as Ryan got down on one knee.
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