The 28-year-old has hit out at her former fiancé, branding his performances on Strictly Come Dancing 'embarrassing'.
Speaking to a British magazine, Lauren said: "It's embarrassing. I mean what is he doing?
"I watch and can't stop laughing at his dancing and the facers he pulls. I don't know why he's going it – he looks silly."
Lauren previously insisted she wouldn't be watching her ex on the BBC One dancing competition.
MARK WRIGHT RIDICULED FOR STRICTLY TEARS: "WHY IS HE ALWAYS CRYING"
She isn't the only one to have blasted Mark, though. Former professional on the show and Lauren's fellow Celebrity Big Brother housemate James Jordan also had something to say about the Essex boy.
He tweeted: "And that's why I'm happy I'm not back. Nice guy but pathetic idea. Makes a mockery of ballroom and Latin."
Mark previously admitted the show is so important to him that he's been close to panic attacks.
He told The Sun: "I have this moment before we go on where I'm close to an attack and breathing heavily – last week I even had tears in my eyes."
"It's so much pressure and I don't want it to end. Then I see my family and fiancee in the audience which makes me even more emotional."
But he has received some teasing about his tears. Mark continued: I've been ribbed by my mates. My granddad said, 'Well done, boy. That was great. I mean, we could have done without the tears…'"