She intentionally blanked him. Fitzy told listeners on the Fitzy & Wippa show this morning that afterwards she told him that she obviously does knows who he is. It didn't work out between them so now her standard response always is "Who? I don't know who you're talking about."
And there's a twist to the story. A little earlier there was a lady in the audience who has been battling cancer and at the end of the conversation her boyfriend proposed to her. Paris Hilton was moved by the story and asked for a selfie with them.
While taking the photo, there was a woman behind them who was trying to hide and not be in the shot. The women rang the show this morning and explained that coincidentally she was the mother of Rob Mills and she was desperately trying to stay out of the photo with Paris Hilton.
Apparently she went along to be in the audience of the show and had no idea she was going to be a guest. When she heard about she thought it might have been some sort of gee up. Then she was mortified when she ended up in a photo with her.
Regarding Millsy and Paris, she said that it happened 13 years ago when her son was 21. She said people do things when they are young and wild and she herself did a few crazy things at that age. But she is staggered that people still keep bringing this up all the time, considering how hard he has worked since then on stage and screen and he's just started with a part on Neighbours.