Katie married part-time stripper Kieran - her third husband - in the Bahamas in January 2013 and is currently pregnant with their second child, having given birth to son Jett last summer.
But this morning (7 May), a tweet published on her Twitter profile said that Katie will be divorcing him after an alleged affair. Kieran has made no comment on her claims.
As the news unfolds, we take a look back at unlucky-in-love Katie's past boyfriends...and husbands here:
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