In the clip, shot on Dean's iPhone shortly after his secret pub meeting with Davina, the creative director confessed to feeling torn between the women.
"This is nuts ... I've just finished talking with Davina for the first time, there's so much stuff going through my head right now," he told the camera before groaning.
"I feel like I need to tell Tracey that I met with Davina."
In the caption, Dean also admitted that he still feels "bad" for "doing this to [Davina's show partner] Ryan and Tracey" but added that he'd "learnt a lot".
Late last month, Davina detailed the torrent of abuse she received when the affair played out on the hit Nine series.
The Brisbane bikini model, portrayed as the show's villain, broke down speaking about the death threats on A Current Affair.
"It wasn't little bits and pieces; it was a lot — mean stuff. From my appearance to the things they would do to me in the street — how they would assault me. Even though it's words; words still carry a lot of weight," she said.
"It's easy to say screw the haters but they are pretty serious threats. I was crying a lot.
"It doesn't matter who you are. It's not nice to think that people hate you that much.
"My mum and dad were ropeable. I just feel really bad for them because everything — it's all on the internet.
"It was really hard watching them feel so helpless."
