Katona married former rugby league (Warrington Wolves A-Team) footballer; George Kay on 14 September 2014. They have one daughter (b.2014), Kay had served three years of a six-year jail sentence after being convicted for blackmail in 2008. On 7 October 2015, Katona announced their separation after he allegedly assaulted her at their home in Crowborough and was subsequently arrested by police. Kay was charged with assault by beating and possessing a banned weapon, but these charges were later dropped due to lack of evidence. Like Katona, Kay suffered from mental health issues, and died on 5 July 2019 after an overdose. Like her mother Sue before her, Katona was diagnosed with bipolar disorder in 2005 and has been campaigning to increase awareness of mental health problems. Katona also has dyslexia and attention deficit hyperactivity disorder.