Here, we catch up with the show's confessed "super villain" to find out what really happened between him and Davina, why he had a change of heart and if he has any regrets.
You previously told TV WEEK that you've never cheated in the past. Why start now on national television?
In my mind, I didn't cheat. I only met with Davina to discuss how we weren't happy with our partners. It did get a little bit romantic, and I did have thoughts of leaving Tracey.
But we never kissed on the lips or were intimate in anyway. I wasn't completely honest with Tracey, but I didn't cheat on her.
Davina claims you told her you were leaving Tracey to be with her. But you still slept with Tracey the night before the commitment ceremony. Australia wants to know why?
The discussion I had with Davina at the second dinner party scared me away from her a little bit. She came on a bit too strong. After that, I started to think I was making a terrible mistake and that Tracey was, in fact, a great match for me.
Tracey and I had an amazing conversation that night. As always, there was a strong connection between us, so we had sex.
Why did you announce the "affair" to everyone at the ceremony instead of talking to Tracey privately first?
That time was very confusing for me.
But I felt like Tracey needed to be told about my discussions with Davina before she made another commitment to me. Although it was a dramatic way to do it, my conscience was telling me it was the right thing to do.
So how did Dean convince Tracey to stay? Pick up the latest issue of TV WEEK for the full interview - on sale now!