From the very first moment he appeared on our screens, many of us have been wondering about the authenticity of eccentric Married At First Sight groom Troy Delmege.

His bizarre quotes, confronting teeth-brushing technique and insistence on hitting on almost every woman around him led many to believe he must be a paid actor.

According to a fan on the Married At First Sight Australia fans Facebook page, Troy's 'bride', flight attendant Ashley Irvin, has admitted the rumours are true.

The fan explained that she had quizzed Ashley on the show after meeting her on a "domestic Virgin flight" on Monday.

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"Just got on a flight with Ash! So pretty in real life!" the woman wrote alongside a selfie of the pair. "She was really friendly and happy to do photos and answer so many questions by so many people."

Then she dropped the bombshell.

"[Ashley] said Troy didn't apply for the show but was selected via an agency ... She said they weren't going to get rid of a main 'character' early, so she had to play the game."

News.com.au has reached out to Channel Nine for comment.