The ladies battled it out in private at the reunion dinner party before laying their feud out publicly in the final episode, which aired last week.
However, New Idea can now exclusively reveal the shocking pact that reunited the two wives - in the name of revenge against Dean Wells.
While Tracey and Davina 'played along' for the cameras in the explosive reunion, behind-the-scenes in the lead up to the final episode of MAFS it was a very different story.
Just hours after Botox-loving single mum Tracey ditched husband Dean at the altar, telling him that he didn't deserve her, she was making secret calls to the other woman.
According to sources close to the show, Davina, 26, was the first person Tracey, 35, called after the failed commitment ceremony, and couldn't wait to share the news that she humiliated the man who played them both for fools.
With Tracey excitedly telling the Instagram model she wants to form a 'Dean hate club', the pair made plans to unleash their fury on the unsuspecting cheating groom.
Our spy claims Tracey was 'faking her feelings' for Dean throughout the show in a bid to stay on television and in the limelight.
'Tracey boasted how she couldn't wait to tell Davian how she has 'stitched Dean up' in the name of girl power and was anything but upset,' the source explains.
'Davina was the first person she called. She was laughing about it all and talking about how upset he was.'
For the full story see this weeks issue of New Idea - out now!