In an interview with this week's new! magazine, the 'Apprentice' runner-up also accused Chantelle of backtracking after she labelled her a 'loser' for allegedly rigging votes for the National Reality TV Awards - an allegation Luisa has furiously denied.
"Anyone that gains weight and loses weight to earn money is a little bit desperate," Luisa told the mag.
"And she backtracked too," she added. "If you call me a loser, f***ing stick by it. When I retaliate don’t say, “I really liked her.” Just say you don’t f***ing like me!"
And Luisa also revealed she's struggling to lose the weight she put on in the 'Celebrity Big Brother' house earlier this year - not that her new admirer Dappy seems to mind.
"I still haven’t lost the half a stone I put on in CBB," she said. "It’s on my hips and arse – but as Dappy says, he likes some junk in the trunk."
But she denied there was anything romantic going on between her and her former 'Celebrity Big Brother' housemate, saying: "We love flirting with each other. But I don’t think we are going to get together anytime soon."
Read the full interview with Luisa in this week's new! magazine, out now