Katie Price confronted Kris Boyson at his home in a row about his new girlfriend Bianca Gascoigne, it's claimed.
The former glamour model, 42, reportedly says Kris has been lying about being in contact with her and had "no choice" but to say something.
Kris, 31, moved Paul Gascoigne's daughter Bianca, 33, into his house this week and Katie is said to have turned up not long after she was pictured moving her things in.
And things got so loud and heated that neighbours came out of their homes to see what the noise was, it's reported by The Sun.
Katie apparently heard that Kris is telling people they've had no contact since he started dating Bianca, which she says isn't true.
A source said: "Katie had heard that he’d been telling people they’d had no contact since he started dating Bianca, and she’s saying it’s not true,” says the insider.
"She thinks he should be honest with Bianca and tell her that they’re still speaking."
But Kris is insisting that he hasn't been in contact, with the source adding: "He wants to move on with Bianca and he told Katie that."
Katie's rep had no comment but confirmed she was at Kris' house 'briefly'.
Kris' rep also declined to comment.
The pair dated on and off for around two years, and split up last November.
Since their split Katie has remained single.
She is currently living 10 minutes away from ex Peter Andre and their children Junior, 14, and Princess, 12.
Meanwhile, her youngest two children Jett, six, and Bunny, five, are living with their dad Kieran Hayler.
Katie has been renting a house in Surrey with her eldest child Harvey during the lockdown.
