The Strictly Come Dancing professional was evicted from the show on Tuesday night, and later told Big Brother's Bit On The Side host Rylan Clark-Neal that she would have nominated Gemma to go if she'd had the chance.
"At the beginning I really liked her and had respect for her business side," she said.
"And I know she went through a lot of things in her private life. But I'm so disappointed with the last couple of days, when she constantly was putting fuel in the fire and trying to create arguments and going behind people's backs and trying to wind people up.
"I don't get it. Why would you want to live in a house full of arguments day and night?
"It did upset me. You think you're forming a good relationship or friendship with somebody, and when she shared her private stories and her life, I really felt for her and thought, 'Well done for being so strong going forward,' so it surprised me her being like that."
Gemma was involved in a major row with Stephanie Davis over the weekend when she told Steph it was a "disgrace" that she had kissed Jeremy McConnell when she has a boyfriend on the outside.