Married At First Sight 2026's most explosive rumour has finally been unmasked - and for many behind the scenes, it was never really a secret.
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After weeks of whispers, denials and mounting speculation, Daily Mail can reveal that Brook Crompton is the bride accused of secretly reconnecting with her ex while still part of the experiment, and now pregnant.
In footage obtained by Daily Mail, Brook is seen kissing her ex-boyfriend Harry as the pair decorate a Christmas tree together in October - just weeks after her on-screen marriage to Chris Nield came crumbling down off camera.
The intimate video shows the couple unable to keep their hands off each other, sharing several kisses and cosy embraces inside an apartment as they put up Christmas decorations weeks before December had even arrived.
For cast and crew, the reveal was less a shock and more a confirmation of what many already suspected.
Multiple cast members told Daily Mail that Brook and Chris never stood a chance.
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Married At First Sight 2026's most explosive rumour has finally been unmasked - and for many behind the scenes, it was never really a secret. (Pictured: Brook Crompton with Chris Nield)
After weeks of whispers, denials and mounting speculation, Daily Mail can reveal that Brook is the bride accused of secretly reconnecting with her ex while still part of the experiment
In footage obtained by Daily Mail, Brook is seen kissing her ex-boyfriend Harry as the pair decorate a Christmas tree together in October, just weeks after her on-screen marriage to Chris Nield came crumbling down off camera
According to insiders, Brook 'friend-zoned' Chris from the very beginning, with the relationship never progressing beyond surface-level banter.
'There was no spark,' one cast member said. 'It was obvious early on that it wasn't going anywhere.'
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Things reportedly took a sharp turn during Revelations Week, when Brook was shown Chris' audition tape.
'She was completely turned off by the attention-seeking, f**k-boy energy,' one insider claimed. 'After that, she mentally checked out.'
From that point on, sources say Brook felt obligated to stay on the show because she was being pressured by producers.
As previously reported by Daily Mail, MAFS 2026 has been plagued by walk-outs, defiance and off-camera drama, with producers introducing weekly drug testing and strict curfews in a desperate bid to rein in the most unruly cast in years.
Despite the clampdown, Brook's movements during filming quickly raised eyebrows.
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Several cast members claim she flew home to the Gold Coast on the weekends she was permitted to leave the experiment, citing 'modelling gigs' as the reason.
The intimate video shows the couple unable to keep their hands off each other, sharing several kisses and cosy embraces inside an apartment as they put up Christmas decorations weeks before December had even arrived
Multiple cast members tell Daily Mail that Brook and Chris never stood a chance
But whispers soon began circulating in cast group chats that something else was going on.
'People started questioning why she needed to be home so often,' one source said. 'There was speculation she was trying to work things out with her ex.'
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That speculation would later explode into full-blown accusations behind the scenes.
Daily Mail can also reveal that Brook was still publicly referring to Harry as her boyfriend as recently as April, just three months before filming MAFS began.
In a TikTok video that remains live on her account, Brook refers to Harry as her partner, fuelling questions about how emotionally available she really was heading into the experiment.
By October, the pair appeared well and truly back together.
In the Christmas tree footage, Brook and Harry share several kisses as they decorate their home, a level of intimacy that left little room for doubt among those who had already been whispering.
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Brook's personal life continued to spark speculation after filming wrapped.
According to insiders, Brook 'friend-zoned' Chris from the very beginning, with the relationship never progressing beyond surface-level banter
Things reportedly took a sharp turn during Revelations Week, when Brook was shown Chris' audition tape. 'She was completely turned off by the attention-seeking, f**k-boy energy,' one insider claimed. 'After that, she mentally checked out'
Daily Mail can also reveal that Brook was still publicly referring to Harry as her boyfriend as recently as April, just three months before filming MAFS began
Just weeks earlier, Brook denied she was hiding 'big news' to Daily Mail, after declining Channel Nine's invitation to attend the reunion, which was filmed in November
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She was spotted socialising throughout Brisbane's James St precinct days ago, where she appeared visibly pregnant and expecting, according to reports by The Courier Mail.
Just weeks earlier, Brook denied she was hiding 'big news' to Daily Mail, after declining Channel Nine's invitation to attend the reunion, which was filmed in November.
Her refusal to attend only intensified speculation among fellow cast members.
Around the same time, whispers in MAFS group chats suggested Harry had proposed during a romantic trip to Aspen.
Brook denied the engagement rumours at the time.
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As previously revealed by Daily Mail, insiders warned early on that unresolved exes and emotional baggage were ticking time bombs within the 2026 cast.
The accusation that a bride had secretly flown home mid-season to reconnect with an ex was described by one source as 'the ultimate betrayal of the experiment'.
'If it came out on camera, it would have blown the show wide open,' the insider said.
Channel Nine has declined to comment.