The model, 38, is said to no longer have a 'normal relationship' with the singer, 39, and they are living under the same roof but have 'separate lives' in the aftermath of the scandal.
She and the McFly star, 38, share daughter Lola, eight, as well as sons Kit, seven, and Lockie, three, but Izzy chose not to name which of her children had been diagnosed with the condition.
Maura Higgins is reportedly set to make a return to the TV spotlight as a contestant on British game show Blankety Blank, following her 'drunken kiss' with married McFly star Danny Jones.
After a public apology from Danny where he said he was sorry for putting Georgia 'in this situation,' she took some time away as she stayed over at her and Danny's best friends' house.