"She was an absolute mess before the reunion," the unnamed contestant told New idea, adding she was allegedly "sedated".
"Her anxiety was through the roof and she was extremely nervous about going inside and being confronted by everyone again because she knew she was going to cop it from all angles. She had a total meltdown."
Adding to her stress levels was news Mikey was being flown home early from a family vacation in Europe so they could address the rumours of his alleged hook up with law graduate while she was in the room.
"Stacey completely denied it," they said. "Stacey was gobsmacked and really upset. But everyone was shocked and angry that she had the audacity to lie about it, after taking the moral high ground when Michael cheated on her with Hayley. It’s not fair that she thinks she can have this dirty little secret and get away with it."
As we know, the mother to two young boys is said to have been grilled about her sneaky rendezvous with the larrikin. This morning, David Cannon dished on what we can expect from the reunion, admitting it all kicks off after Mikey's ex-wife, Natasha Spencer, took it upon herself to expose the duo as soon as they sat down.
"Natasha stands up and she goes ‘ding ding ding’ on her glass," David told James Weir on news.com.au's podcast Not Here To Make Friends. “She goes, ‘Thank you everyone for coming, past and present’, blah blah blah. Then she goes to Stacey and goes, ‘And thank you Stacey for f**king my husband’. And that was round one.”
Hayley Vernon is said to have also joined in on the roast, with the bodybuilder revealing just hours before arriving at the reunion that she couldn't wait to expose her arch enemy.
"I'm feeling really good about the reunion, I'm going to pull Stacey up on her s**t! I've found out a bit of a secret that Stacey got her leg over Mikey during filming," she told Daily Mail Australia in December.
"I don't know when or where it took place, but it was in the [couples' apartment] building. Let's just put it into Hayley's terms: They f**ked. Stacey f**ked Mikey," she added.
While they've never been fond of each other, Hayley said the way Stacey acted when she hooked up with her television husband has only made getting revenge even sweeter.
"The whole time [Stacey] was like, 'I am the victim here, I'm the victim!' The only thing she's the victim of is pointing the f**king finger. What a dog. I only ever kissed Michael and I'm ready to say it exactly how I see it."