The 36-year-old mum-of-four, who has a baby son, Jett, by Kieran and is expecting his daughter, said she hopes for 'a happy ending'.
The former glamour model married the plasterer in April but then discovered he had been cheating on her with her best friend, Jane Pountney. Katie appeared on Loose Women (Friday 20 June) looking radiant. She cancelled an appearance on the same show on the day she discovered her husband and best friend's affair.
She announced she was divorcing him – but now seems to have changed her mind.
She said: "I'm not ruling anything out, he's getting help, time's a healer. You have to be adult about the situation.
"Let's hope there's a happy ending. It's a serious matter - remember there are children involved too. I'm quite a tolerant person."
Katie revealed her plans to have Kieran back during her live radio show debut.
She was kicking off her morning gig on unregulated online station FUBAR alongside TV presenter and comedian Mark Dolan.
She said of love cheat Kieran: "He's been with my best friend and another woman. All I can do is deal with it, get him help and see if he's better than before. If a friend was telling me what happened I'd say get rid. But in that situation you have to assess it.
"I know the full story and it's not normal what he's done. I can only stick by him and see that he's making a difference."
Kieran, 27, admitted his seven-month fling with 49-year-old Jane - which included having sex in his wife's stables.
Katie added: "What he's done is disgusting and cruel. I've been pregnant for two years - my hormones haven't settled from Jett.
"He's only known me pregnant. He knows I won't ever forgive and never forget though. That's one thing people have to remember. It's early days and still raw."
She added: "With this situation with Kieran I never expected it. Money doesn't bring happiness. You can have everything and you still can't keep a man down.
"You can give him as much sex as you like, but if a man's going to cheat, he's going to cheat."
And even though Katie has suggested she will give Kieran another chance, she said there is much more to come out about his affair with Jane, whose husband Derrick is said to be divorcing her over the affair.
She warned: "I've kept my mouth shut. This is just the beginning. I'm a human - I have feelings. I wouldn't wish it on anyone.
"And the fact I had to entertain these two while this was going on behind my back is awful."