The 38-year-old star took to Twitter to deny claims that she and her husband - who previously admitted to cheating on Katie - are experiencing fresh marriage difficulties.
She fumed: ''From the horses mouth me and kieran are 100 per cent together not splitting up we are very happy and very much in love leave our relationship alone (sic).''
The duo renewed their vows in February 2015 after Kieran confessed to being unfaithful.
However, Katie recently announced she was taking some time out from her ITV show 'Loose Women' in order to focus on her marriage.
The former glamour model decided to take a month off from the daytime show to have therapy with Kieran to resolve some outstanding issues relating to his extra-marital affairs with two of her best friends.
Katie had to talk about Kieran's betrayal with her best friend Jane Pountney at length while promoting her new autobiography 'Reborn' and she admitted the experience re-opened a lot of old wounds which need healing from 2014.
She said: ''I thought I was over it [the affair] but obviously, it's opened it up again, having to talk about it. I thought I dealt with it but when I look back I was concentrating on the babies and I was numb from when it all happened.
''I was contracted [to do the book tour] so obviously you have to do certain things, so whenever I was asked questions I was trying to bat them off with the good stuff, I'm quite good at putting up a defence but I just couldn't do it with this - I was getting asked questions like, 'The moment you saw them on the beach, what was it like?' It's something that I just don't want to relive again, it's something that's been awful, torture. I haven't got any more tears to cry, my heart is shattered, it's broken, it's nowhere near healed. I haven't got no tears.''
Admitting her revelations about her own feelings have been difficult for Kieran to process, she added: ''It's also been hard for Kieran, he's changed in two-and-a-half years, he's had his therapy, and then we've got the book out again and he's having to relive what kind of person he was. And I'm having to relive it with a fresh mind, I haven't just had a baby and think, 'Oh my god, this is really what he did to me.' ''
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