Hayley then went to speak to Kelvin and Michelle one-on-one where things continued to go from bad to worse.
Calling David a "country bumpkin" in conversation, Hayley clearly offended Kelvin, who tried to defend his son, saying, "I wouldn’t call him a country bumpkin..." – but before he could finish, Hayley had cut him off, saying that’s what 31-year-old David had called himself.
When the conversation turned to where she was from – Port Melbourne – Kelvin called it the "other side of the world that we never go to", which apparently got Hayley rather annoyed.
"Oh don’t turn your nose up to it, it's alright," she quipped back.
David later went to get an update from his parents, and Kelvin was quick to voice his disapproval.
"Just letting you know she’s upset," Kelvin told his son, who replied: "I can clearly see that."
Married At First Sight continues Thursday at 7:30pm on Channel Nine