The pair parted ways originally in September, with Kelly taking to her Twitter page to confirm she and David were ‘no longer engaged.’
But just a matter of weeks later, the 34-year-old and her former Gladiator beau were pictured enjoying each other’s company once more.
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They even enjoyed a sun-kissed break away to Mexico, despite the rumours that ‘Tornado’ had actually cheated on Kel before their initial split.
But now it seems Kelly and David have called it quits for good.
Speaking to The Sun at a Hollywood fundraiser, Kelly said: ‘I’m very happy. I am a single, happy girl living in a great town and working with fantastic people.’
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Kelly plans to remain in LA, where she has just wrapped filming her new sitcom One Big Happy.
‘I am living out here - it’s fantastic. I have a great job, I’ve got great friends. I just surround myself with positive, nice people and that’s all you can do. It’s just part of life.’
Brook added: ‘Maybe it’s not my time to find love at the moment…There are more important things in the world.’