The Celebrity Big Brother star appeared in court earlier this month accused of hitting a policeman who responded to reports she was threatening to kill herself at her home on September 29 last year.
The former supermodel denied the charges, insisting that she was trying to give him a sunflower as a gift.
She was found guilty of assault at Aylesbury Magistrates' Court on Friday (February 15) and ordered to pay a fine of £400 and £650 in costs.
Speaking after the ruling, she said: "I think it's very sad that if I was Miss Bridget Jones, lying on the sofa drinking wine, that would be okay.
"But because I'm an eccentric and I have a different lifestyle, I'm treated like this. I had a drink, a bottle of wine like Bridget Jones. My crime today is that I have an alternative lifestyle.
"I'm pro-police but I'm now beginning to wonder how many days has the court wasted on me giving a flower to a policeman."