Apparently Married At First Sight's Carly and Troy have called it quits!

They fell in love on the latest season of 'Married At First Sight' Australia, but if fans are correct the couple have now called it quits!

So, what could possibly have fans thinking they've split?

Look no further than Instagram.

Rumours began swirling over the weekend after former groom Troy Delmege posted a photo of himself and Carly Bowyer at St Kilda beach on the social networking service.

Eagle-eyed followers believe the 35-year-old was trying to pass off an old photo as new, as they noticed Carly was missing her veneers in the picture.

But the reality star captioned the post in present tense, writing: "Evening stroll through St Kilda... this tour guide is pretty cute #loveisintheair #poppinganeyebrow #mytonguejustdoesthat".

Fans were quick to voice their confusion, with one user asking: "Where's Carly's new teeth gone!?"

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"This is an old photo. I actually don't think they are still together," said another.

When others speculated the old photo could be because Carly is pregnant, the reality star responded saying she was not pregnant and that Troy was "in trouble for this post".

The couple have yet to address the rumours.

So what do you think?