Katie, who is expecting hers and Kieran's second baby, made the confession in a new interview today (22 July) and added that she is not ready to divorce him just yet.
Speaking to The Sun, Katie said: "I love Kieran. I could throttle him but that doesn't mean I don't love him."
Katie told the world about Kieran's cheating on 7 May, when she tweeted that he had been sleeping with her best friend Jane Pountney. Then, earlier this week, Katie accused Kieran of sleeping with a second woman.
The soon-to-be mum-of-five claimed Kieran had been having sex with another friend in road lay-bys and said he later confessed while taking a lie detector test.
Katie has now confirmed that she and Kieran are sleeping in separate bedrooms, adding that he is "having therapy for compulsive sex addiction". Once he has completed her course, she says she will re-evaluate their marriage.
Since the cheating allegations came to light, Katie has decided to move from her home in Sussex. She describes Jane and the other woman as "wicked witches".
Meanwhile, Katie is currently eight months pregnant and is expecting a baby daughter with Kieran. Last summer, she gave birth to their first child together in France, a son called Jett Riviera.
Katie is also mum to Harvey, Junior and Princess, from previous relationships.
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