Stevi Ritchie "regrets" taking part in 'Celebrity Big Brother' with Chloe-Jasmine Wichello.
The former 'X Factor' star "loved" being on the fly-on-the-wall show but thinks it was a mistake entering such a "toxic" environment with his fiancée.
He said: "As soon as you walk in, it's a pressure cooker; your emotions are heightened and there's nowhere to let off steam. The smallest things turn into huge arguments and you've got so much time to stew over it. I loved the experience but it was a toxic atmosphere - series 16 was one of the bitchiest yet. I regret going in there as a couple.
"Chloe and I knew it would make or break our relationship - we made it through but there were big ups and downs."
Stevi found it tough not being able to get intimate with Chloe while they were in the house, but admitted they did "have a fumble" when the lights went down.
Writing in his guest column for Closer magazine, he said: "It was tough not being able to make love to my woman. We missed that...
"Chloe and I would have a fumble under the covers at night."
And the reality star found it very hard not having any contact with his eight-year-old daughter Summer.
He said: "I missed Summer more than anything. It was so hard being away from her."