'Give me attention': Cracks start to show for Alyssa and Duncan as the couples head off to The Retreat in new teaser for MAFS 2023

After weeks of intense Dinner Parties and Commitment Ceremonies, the Married At First Sight participants are certainly in need of a break.

The Retreat couldn't come at a better time for the brides and grooms... or could it?

Stream every episode of Married At First Sight for free on 9Now.

With all the brides and grooms under one roof the sneak peek – which you can watch above – teases that there will be more than a few personality clashes.

"Surely it's gonna be fine right?" Claire tells cameras.

But if the sneak peek is anything to go by, Claire is wrong.

Cracks start to show for one of the strongest couples in the experiment, Alyssa and Duncan.

"Give me attention, I need attention because I haven't had any," Alyssa snaps.

She holds back tears and when Duncan asks if he can hug her she's quick to decline.

EXCLUSIVE: Duncan reveals why he is still single in audition tape

But it's not just the newlyweds who aren't getting along. Rivals Melinda and Harrison are also set to butt heads.

"You're obsessed with our relationship, you're trying to sabotage it," Melinda tells Harrison.

"You're a manipulator."

READ MORE: What to buy the bride and groom who already have it all

But Bronte jumps to her husband's defence.

"I wouldn't be with someone who targets people on purpose," Bronte says.

Melinda is concerned that Bronte isn't thinking straight.

"I think she's drinking the Harrison cool-aid," Melinda tells cameras.

EPISODE 21 RECAP: One bride storms out of the Commitment Ceremony

A snippet from the sneak peek shows Bronte storming off in tears. As for what caused the walk out, we'll have to wait to find out.

It's set to be a "powerful week" for the brides and grooms as the enter The Retreat.

Married At First Sight continues Monday to Wednesday at 7.30pm and Sunday at 7.00pm on Channel 9 and 9Now.