Leaked footage shows Married At First Sight Alissa Fay having an epic meltdown over her accommodation and swearing at her husband David

David Momoh and Alissa Fay looked like one of the strongest husband and wife teams on Married At First Sight this season.

But now, previously unseen footage reveals that severe cracks began to appear in the pair's relationship during the couple's retreat.

In the explosive clip, Alissa, 33, can be seen having a massive meltdown over their accommodation.

Upset because there are no blinds on the windows of their bedroom, Alissa hurls insults at her groom and criticises him for not solving the issue.   

'F*** you! I f***ing solve every f***ing problem! You p*** me off,' she tells a gobsmacked David, who calmly observes his bride.

Still, David, 31, stands his ground and tells her not to cancel him.

'Don't talk to me like that, please. Have some respect.'

The drama ends with Alissa storming out of the room and demanding to 'sleep outside'. 

David reviewed the hair-raising incident on the latest episode of Stan's MAFS: After The Dinner Party, and revealed some behind-the-scenes details.

'I have this thing where I have to be extra caring,' he said, reflecting on the moment.  

'I feel like I was being respectful in the relationship because I knew that from past experiences, being toxic, you know, teeing each other up by using rude words or whatever, it's not healthy for a relationship.

'So I try to be calm and reasoning... I feel like for [Alissa], she needed that up and down of a relationship.'

It comes after MAFS fans were served up another bombshell dinner party last week, which saw a showdown between Bec Zacharia and Alissa.

Heading into the dinner party, Alissa told David that she was not going to shy away from the texting drama or the other attacks she and David had been subjected to throughout the experiment.

'I refuse to play the game anymore and be that pawn in the middle,' Alissa told producers.

'I have never said a bad word about anyone, so I'm not going to tolerate it anymore. Enough is enough.'

Bec attempted to broach the subject during pre-dinner cocktails, but a frosty Alissa was having none of it, telling Bec to save it for the table.

With palpable tension around the table, Alissa honed in on Bec and her vile text messages.

She explained to the table that Gia Fleur had sent Juliette Chae the messages, and prior to leaving, Juliette passed them on to Alissa.

'Reading those messages brought up a lot of hurt,' she said, addressing Bec.

'They were the most vicious, vulgar... I would never say that to someone in real life, let alone in a message.'

Adding that while she recognised Gia's role in the drama, Alissa said she could not get over the invective Bec displayed in the texts.

'Gia played a part in them as well, but what came out of your mouth, I'm telling you, I was in tears, it was vile and vicious, babe.'

Continuing her dressing down, Alissa said that Bec's behaviour had affected everyone in the experiment.

'I've seen repetitive behaviour, not just with me, but with other people at this table where you've come for them.