Jimmy is believed to have moved on with with WAG wannabe, Lauren Mand.
In pictures on the Daily Mail Australia, the pair were captured having beers and lunch at midday two weeks ago at the Manly Greenhouse restaurant in Sydney.
The pictures of the afternoon hook-up marks the first time the pair have been seen together since their relationship was made public on August 16. But Lauren has been telling friends that Jimmy is her "boyfriend" for some time.
The pictures are sure to devastate an already heartbroken Nadia, who is said to have found text messages from Lauren on Jimmy's phone.
Meanwhile, Lauren recently put her London unit up for rent, ahead of a planned move back to Australia on September 22.
She advertised her room in the two-bedroom apartment on the Aussies in London private Facebook page on Wednesday, according to the Daily Mail Australia.