Reallity star says she shouldn't rekindle her romance with him
But Kerry, 27, thinks she should stop wasting her time.
‘If I was her I wouldn’t go back,’ she writes in her OK! diary.
‘It’s easy to slip back into that comfort zone but she shouldn’t. Move on Kylie, get pushing those babies out!
‘She could get with George Clooney. He’s single now.’
In April, Kerry criticised Kylie, 40, for putting her personal life before her career.
Kerry is mum to Molly, 6, and Lilly-Sue, 5, with ex-husband Brian McFadden, and Heidi, 1, and Max, 2 months, with husband Mark Croft, 37.