Chatting to her co-host Mark Dolan, Katie first opened up about her former pal Jane Pountney having an affair with husband Kieran Hayler - calling her a 'baggy fanny' and confirming that the 49-year-old is a 'wh***' and a sl**.'
As Dolan probed the mother-of-four about the affair, Katie added that Kieran and Jane are both 'disgusting' for what they've done, and that she will truly 'never forgive or forget' either of them.
The star refrained from saying she had called time on the marriage forever, confirming that Kieran is getting help for his sex addiction, 'if that's what you want to call it.'
She added that everything is 'too raw' at the current time to go into full detail, but there 'will be a time when I talk about it.'
36-year-old Katie then opened up about her former husbands Peter Andre and Alex Reid, adding that Pete is 'not a nice person,' who is now obsessed with fame and money.
Alex Reid got away slightly more lightly, with Katie confirming he's not a bad person, 'he's just obviously got issues.'
The star added that Alex has tried to get in touch with her since the news of Kieran's affair broke in May, but she hasn't replied to his emails.