"Ivan, can I be honest with you? You're the most un-sleazy c**t. You're the only one that's loyal to his missus and I'll be saying that at the reunion," Mikey said in the clip which was taken during a boozy night out.
Just moments before the rogue video cut off, he called the quirky real estate agent a "c**t" again, declaring he "doesn't give a f**k" about the experiment or breaching his extremely strict Nine Network contract.
The leaked video comes less than a week after Mishel Karen confirmed Elizabeth Sobinoff was being fed lines by producers in order to spice up the show.
"That happened at the first dinner party and as she came in at the first commitment ceremony," the 49-year-old bride revealed during an interview on The Kyle and Jackie O show.
"Yeah, that was quite disturbing. But then because we actually pulled her up on it…it was Michael [Goonan], and myself," the school teacher continued.
Speaking on the Not Here to Make Friends podcast two weeks ago, Mishel revealed that she had initially confronted Lizzie about the device during one of the group dinner parties, however, show producers conveniently cut out the scene from the final edit.
"We were just so suss because of the way she wore her hair and she never [normally] wears her hair over that ear. We actually didn't like the fact that she told us, 'This is a one-off experience, you are so lucky to have this and whatever.'"