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The Big Brother star, who is rumoured to be dating presenter Rav Wilding, claimed that she has moved on.
She told Now: "I feel numb towards him, I feel like I don't even know him."
The pair divorced in 2007 after a ten-month marriage but both returned to the Big Brother house this summer.
She explained: "It's a weird situation, but going back on Big Brother was the best thing I did to realise it wasn't ever right, ever. I wanted to close the door on all of what I had with Preston and I have, massively.
"I was right to divorce him after all. I don't think we'll ever speak again."
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