"I would also say that I would think that would be more of a revenge thing from Michael to get back at Stacey. So hopefully they're not together," Lizzie continued.
KC and Michael went public with their relationship, telling New Idea that they've also moved in together since filming of the show ended.
But the dancer isn't happy with what Lizzie has had to say about her and Michael's newfound love.
"One thing that has rattled me is seeing what Lizzie had to say about my relationship with Michael. We were friends the whole way through that experiment and I really liked her so it's disappointing to hear her say Michael is only with me for revenge and that I'm a bad friend because I was close to Stacey in the experiment," she sad in an emotional video posted to her Instagram story.
KC continued, explaining how she never expected to fall in love with Michael, but she's in it for the right reasons and so is he.
"The first time I met him for a drink was a month after the show and he was with a girl at that point. I didn't plan this and I didn't set out to hurt anyone's feelings. I don't form armies and I won't be saying nasty things about other people.
"It's disappointing to hear people say that our relationship is for revenge when I'm genuinely happy and I've found someone I want to be with," she concluded.
The pair were beaming with love for one another in their interview with New Idea.
"It’s love. We have one hell of a journey ahead of us – everything is on the table. We even moved in together last week," Michael said.
Hell - they're even planning on starting a family!
"I think KC would be the best mum. A little dancing pop star! We are excited to start the next chapter," said the party boy who caused quite the stir on this season of the experiment.
"I have no regrets. I loved filming the show and everything it taught me. I learned so much from Drew and even though I didn’t find love on the show, it led me to find love now and I couldn’t be happier," KC added.