Speaking about her relationship with the 27-year-old builder and part-stripper, whom she has 2-month-old baby Jett with, she explained:
‘My marriage is not my career, it's my relationship.
‘Me and Pete, we had a career together, whereas now it's a marriage. From the moment we stepped out of the jungle, it was a career together.’
And the mother-of-four insists there is no ‘dark secret’ as to why the former couple split, revealing her shock at the divorce.
‘I thought we had a secure, happy family, something which I have always wanted. But that happy family was destroyed when Pete walked out - telling me it was over in a phone call,’ she remembered.
‘He would often drop hints in the magazine interviews he subsequently gave that there was a dark secret behind our divorce. There was no dark secret.’
In 2011, after the pair split following a 6-year-marriage, Peter gave an interview to Piers Morgan where he said:
‘Katie said the reason I left her was because I'd seen pictures of her in nightclubs flirting with other men and presumed she'd cheated on me.
Katie: 'There was no dark secret.’
‘That is not the truth. Those pictures were not the reason I left Katie. I would never end a marriage over something small, or little things building up.
‘Something big happened, which I won't reveal as I don't want my kids reading it. But when I tell them, I'll come on your show and reveal what actually happened.
‘Katie knows 100 per cent the reason why I left her and I am 100 per cent sure that what happened definitely did happen.’