Married at First Sight Australia groom Bryce Ruthven had his long-running lie about not having a secret girlfriend outside of the experiment exposed by his friends during a visit to his hometown.
Ruthven's television wife Melissa Rawson asked her husband's friends point-blank about the rumour he was seeing another woman and had organised a gift for her while still married, but they avoided giving a concrete answer.
"What has he told you?" one friend asked Rawson uncomfortably.
"I don't really have heaps to comment. If I knew more I would jump in," said another.
Ruthven himself has vehemently denied the rumour on several occasions, with the accusation being the catalyst for more than one angry outburst during the series.
After the couple leaves to continue exploring Canberra, where Bryce says he's going to try to convince Rawson to move to, his friends discuss the situation, unaware they're still being filmed.
"Do think he's lied to her?" one asked the others.
"Yep. No doubt," two agree.
"Because the gift thing is true," one pipes up, prompting another to reply "oh shit".
Rawson later told producers she felt "unnerved" by the fact Ruthven's friends couldn't reassure her there was no other woman.
"I've been absolutely honest with you," Ruthven told her in the car.
Married At First Sight Australia airs on Three Sundays at 7pm and Monday-Wednesday at 7:30pm, and is also able to be streamed via ThreeNow.