MARRIED At First Sight's Erica Roberts dropped a bombshell on Jordan Gayle just days ahead of the final.
The dancer from Scotland raised her concerns about the future of their relationship in her final vows.
As the show nears the end, the couples will decide whether they want to continue their marriage outside of the experiment.
Fans have been torn over whether Erica and Jordan are still together on socials, with the pair sparking cheating rumours recently.
Standing at the altar, Erica looked beautiful in a white bridal gown with a plunging neckline.
"I came into this experiment, not only hoping to find a husband but a best friend, a partner in crime and someone who makes me feel safe and protected," she said.
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"Throughout our marriage, you've been all of those things and more," she added, smiling.
Jordan looked relieved as he shifted from one foot to the other as she read from the piece of paper.
However, Erica then changed her tune: "But the lows have sometimes been too difficult to bear.
"Over the past few days and weeks, they've made me doubt the strength and future of our marriage.
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"We've struggled with communication, it's maybe our biggest downfall.
"There have been a lot of occasions where I feel I haven't been heard, when my needs and feelings have been dismissed.
"Being apart has given me time to reflect on our marriage and everything we've been through. It's given me the distance that I've needed to be really honest with myself and now today, with you."
Jordan's face fell and he looked downcast as Erica spoke honestly about how she's been feeling.
"I care about you, and I want you to be happy, but are we really doing what's best to make each other happy?" she asked.
Jordan has recently been tangled up in cheating allegations after he was photographed in a taxi with a mystery woman.
revealed that Jordan was captured in the back of a cab with an unidentified woman last May, shortly after both of them left a London nightclub together.
This happened just three days after the series wrapped filming earlier this year.
An insider said that Jordan shared a kiss with the woman at the rooftop bar before they carried on with their night at a Shoreditch club, ultimately departing the venue in the early hours.
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However, it seems the pair are still together after they were spotted at the Misspap X Playboy party last week.
Jordan and Erica, 25, looked in high spirits while posing alongside their co-stars Peggy Rose, Nathanial Valentino, Kevin Parry and Adrienne Naylor in Manchester.