After leaving the house to cheers from the crowd, he opened up about his time on ‘CBB’ to host Emma Willis.
He admitted that he had found fellow housemate Gemma Collins “intimidating”, following her explosive rows with Stephanie Davis.
“I’ve got to say, I didn’t really get her at the beginning and I’d rather please her than upset her,” he said. “But since we had that conversation the other day, I got her. I got who she was and what kind of a person she is.
“I found her intimidating a little bit, I found her a bit overpowering.”
He added: “She’s a great housemate and she’s doing really well.”
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Christopher found Gemma Collins intimidating
He also spoke of his relationship with Danniella, revealing that he feared facing her in the house, after falling out prior to entering.
“I was shitting myself. What did she say to me? ‘We’ll have words, we’ll speak later’,” he said.
“But we sorted it; you know it’s been great. I’m glad we sorted it because it wasn’t even anything to do with us, it was other people that were trying to stir shit.”
Tuesday night’s episode also saw health expert Gillian McKeith enter the house as part of this week’s shopping task.
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Gillian McKeith will whip the housemates into shape
In the Diary Room, Big Brother informed her that there are high levels of toxicity in the house, and that it was her job to cure that problem.
“Absolutely, could not agree with you more,” she said. “I’m definitely the best person for the job. Bring it on, somebody's got to sort out the mayhem in this place. Shenanigans no more.”
Gillian then entered the house and had to pick who she believed to be the four most toxic housemates to take part in her detox clinic. She chose Stephanie, Scotty T, John and Tiffany, who then headed to a side room for treatment.
‘Celebrity Big Brother’ continues on Wednesday night at 9pm on Channel 5.
Mark even appeared to have forgotten that he'd done 'CBB' himself, when - shortly after Take That's comeback - they said they were pleased none of them had done reality telly in their break.So that wasn't you winning 'Celebrity Big Brother' in 2002, then, Mark? (credit:Rex/Philip Toscano)
Germaine Greer(02 of10)
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Feminist commentator Germaine Greer lasted just five days in the 'CBB' house before walking, following the arrival of her housemate, Brigitte Nielsen's mother in law, Jackie Stallone.Why anyone would pass up the opportunity to spend any time with Jackie is beyond us, but we're sure Germaine had her reasons. (credit:Rex)
H from Steps(03 of10)
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He may be a big character, but H's stint in the house in 2007 was somewhat overshadowed by the racism controversy that surrounded the series that year.Apparently, being a 'Celebrity Big Brother' housemate also made H forget how to do his shirt up properly too. (credit:Rex/David Fisher)
Tommy Sheridan(04 of10)
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Everyone remembers George Galloway's appearance on 'CBB' - largely thanks to one spandex suit, and one unforgettable cat impression - but he isn't the only Scottish politician to have been in the house. (credit:Rex)
Sue Perkins(05 of10)
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She may be now known as a co-presenter on the 'Great British Bake Off', but one of Sue's lesser known accolades is her stint in the 'CBB' house back in 2002, when apparently camouflage-print cargo trousers were all the rage... (credit:Andy Butterton/PA Archive)
Martin Kemp(06 of10)
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He started off the series as the favourite to win, but ultimately the former 'EastEnders' actor and Spandau Ballet guitarist's time in the 'CBB' house was surprisingly uneventful, and he finished in third place behind Colleen Nolan and Julian Clary. (credit:Ian West/PA Archive)
Vinnie Jones(07 of10)
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Hardman actor and ex-footballer Vinnie Jones spent four weeks shacked up in the 'Celebrity Big Brother' house with Stephanie Beacham, 'The Thong Song' singer Sisqo and Alex Reid - a far cry from his A-list life on set with Ian McKellen, Brad Pitt and Halle Berry. (credit:Rex/Channel 4)
Ivana Trump(08 of10)
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The highlight of Ivana's time in the house was when she'd been convinced as part of a task that she'd won a sought-after European award, only for her housemates to drink water out of it and, eventually, smash it. She also donned some questionable flesh-coloured underwear as part of a life drawing task. (credit:Rex/Channel 4)
David McIntosh(09 of10)
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David didn't have much time to make an impression on viewers during his short-lived time in 'CBB' last summer - he only managed to last 10 days before being given the boot. (credit:Karwai Tang via Getty Images)
Jack Dee(10 of10)
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He might prefer not to mention it now, but Jack Dee was the first ever winner of 'Celebrity Big Brother' back in 2001. The whole series might have only lasted eight days - a walk in the park compared to latter day runs - but even that was too much for Jack, who at one point famously tried to tunnel his way out of the house. (credit:Rex/Julian Makey)