They were the couple everyone thought would go the distance.
While other relationships imploded around them, Alissa Fay and David Momoh appeared steady, united and refreshingly drama-free.
But now, as the experiment reaches its final stages, cracks are beginning to show.
And according to insiders, viewers are only seeing part of the story.
The Daily Mail can reveal a turning point in the couple's relationship - one that would have provided insight into their current struggles - was left on the cutting room floor.
The incident, I'm told, involved an awkward mishap during intimacy.
The Daily Mail can reveal a critical moment in David and Alissa's relationship - one that would have provided major insight into their current struggles - was left on the cutting room floor
Since the beginning of the MAFS experiment, David and Alissa (pictured during filming) have been the couple viewers thought would go the distance
According to a well-placed source, the incident was raised on the couch in front of the experts during a Commitment Ceremony - but never made it to air.
While the details of what occurred remain private, insiders say a mishap during their previously active sex life led to a nosedive in their intimacy and overall relationship.
From that point on, everything changed, and what was once effortless became strained.
And as the experiment wore on, those cracks only grew wider.
Speaking to the Mail, Alissa made it clear that significant parts of their relationship had been left out of the edit. This, of course, isn't uncommon on MAFS.
'There are things missing, there are storylines missed,' she said. 'We're dealing with other things in our relationship… things that haven't made it to air.'
It's a sentiment echoed by several cast members this season - that what viewers are seeing is often only a fraction of what is actually unfolding behind closed doors.
From the outside, Alissa and David's relationship appeared to thrive on contrast.
According to a well-placed source, the incident was raised on the couch in front of the experts during a Commitment Ceremony - but never made it to air. (Alissa is pictured during filming)
