Cam Merchant puts on a brave face after allegations he 'dumped his girlfriend ...

Married At First Sight's Cameron Merchant allegedly dumped his long-term girlfriend just a week before 'marrying' Jules Robinson in September last year.

But despite finding himself in the headlines for all the wrong reasons, the 34-year-old former cricketer put on a brave face with his fiancée at a Huawei smartphone launch in Sydney on Thursday.

In the couple's first public appearance since the shock claims surfaced, Cameron and Jules put on a united front as they posed together on the red carpet.

What scandal? MAFS' fan-favourite Cameron Merchant (right) was all smiles at a phone launch on Thursday after claims he dumped his long-term girlfriend 'one week' before marrying Jules Robinson (left) in September last year

What scandal? MAFS' fan-favourite Cameron Merchant (right) was all smiles at a phone launch on Thursday after claims he dumped his long-term girlfriend 'one week' before marrying Jules Robinson (left) in September last year

Cameron was all smiles and even planted a kiss on Jules' cheek as the camera flashes lit up the room.

He looked sharp in a black shirt, chinos and boat shoes, while fashion-forward Jules, 37, opted for a red checkered suit that offered a glimpse of her bra.

Showing no signs of strain, the redheaded business owner placed her arm around Cameron as they posed for photos by the media wall. 

True love: In fact, Cameron, 34, looked like the cat who got the cream as the sidled up next to Jules at the Huawei P30 Series smartphone launch in Sydney

True love: In fact, Cameron, 34, looked like the cat who got the cream as the sidled up next to Jules at the Huawei P30 Series smartphone launch in Sydney

Earlier on Thursday, news broke about Cameron's relationship history before MAFS.

Friends of Tina Ciccio claimed on Facebook that Cameron had abruptly dumped her at the start of September 2018, just before his wedding to Jules on September 20.

It was alleged that Cameron was approached by MAFS producers to take part in the controversial social experiment in August, and then split up with Tina before being fast-tracked onto the show. 

Tina, 30, who was overseas when Cameron was scouted in August, is believed to have only found out her boyfriend left her to go on the show when he was featured in adverts for the Channel Nine series. 

Check me out! Showing no signs of tumult, the redheaded beauty looked equally happy to be by her fiancé's side at the tech event

Check me out! Showing no signs of tumult, the redheaded beauty looked equally happy to be by her fiancé's side at the tech event

One of Tina's friends

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