'Don't speak about women like that!' Married At First Sight's relationship expert Mel Schilling SNAPS at a sexist contestant in an explosive new trailer
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They are known for sitting back and watching the drama unfold.
But it looks like Married At First Sight's relationship experts aren't afraid to call out misbehaving contestants in this year's season.
In a trailer for Sunday's episode, psychologist Mel Schilling snaps at a male participant for using sexist language during a commitment ceremony.
The promo, which aired at the end of Wednesday's show, offers a rare glimpse of Mel losing her temper on camera.
She snarls: 'A tip from me to you: don't use language like that, don't speak about women like that, if you want any chance of a relationship with a woman.'
It's unclear which contestant she is speaking to, but electrician Mike Gunner is a likely candidate.

'Don't speak about women like that!' Married At First Sight's relationship expert Mel Schilling SNAPS at a sexist contestant in an explosive new promo for Sunday's commitment ceremony
During Wednesday's episode, Mike faced a viewer backlash for describing Jessika Power as an 'attractive young girl' and calling Elizabeth Sobinoff 'sweetheart'.
Elizabeth was particularly affronted by the term, responding: 'Sweetheart? Um... '
Mike, 44, later apologised but was nonetheless roasted by MAFS fans on Twitter.


Typical male chauvinist: It's unclear which contestant Mel (left) is speaking to in the trailer, but electrician Mike Gunner (right) is a likely candidate
'If Mike calls one more of these girls "sweetheart" I'm going to throw something,' one person tweeted.
Another wrote: 'Calling a woman sweetheart... Am I the only one that finds that condescending?'
A particularly angry viewer said that Mike, who hails from the Gold Coast, sounded like a 'stupid old fart' by using the term.
Married At First Sight continues Sunday at 7pm on Channel Nine

'Condescending: During Wednesday's episode, Mike faced a viewer backlash for describing Jessika Power as an 'attractive young girl' and calling Elizabeth Sobinoff (right) 'sweetheart'



Outrage: Mike later apologised for calling Elizabeth 'sweetheart' but was nonetheless roasted by Married At First Sight fans on Twitter