Former Married At First Sight groom Patrick Dwyer has resurfaced with a striking new look after retreating from the spotlight for years.

The reality star, who appeared on season eight of the hit Channel Nine dating show in 2021, was spotted on Instagram this week looking barely recognisable as he enjoyed a summer holiday in the UK.

Taking to his Stories on Thursday, the personal trainer shared a sunburnt selfie alongside the caption: 'Of course I would get burnt in the UK.'

Fans were quick to notice that Patrick, who once sported a geeky hairstyle and shy demeanour on the show, looks worlds away from his MAFS persona.

He now has more rugged style, sporting a short quiff and well-groomed facial hair.

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His surprise return to social media comes after his TV bride Belinda Vickers made headlines by announcing her real-life engagement to wealthy businessman Hayden Burbank.

Patrick and Belinda were a quirky fan favourite during their time on MAFS.

Viewers still remember one of the more memorable scenes from Intimacy Week where Patrick prepared a bubble bath to help build a physical connection with his shy bride.

What started as a romantic gesture quickly turned awkward when Patrick began massaging Belinda's feet in the tub.

'Maybe I'll give you a little foot massage,' he said as he rubbed her toes, before complimenting her pedicure: 'Oh, I love your feet. Very clean, I like the little pink toenails you've got on you.'

Following his stint on the show, Patrick quietly faded from the public eye, switching his social media accounts to private and steering clear of reality TV circles.

But he didn't disappear without making a few changes – including a dramatic $28,000 dental makeover courtesy of celebrity dentist Dr Deepan Duraisamy, better known as Dr Dee.

Patrick received 12 of the dentist's famous Picasso Porcelain Veneers and told Daily Mail Australia at the time, 'I didn't realise how bad my teeth were until I saw them on TV.'

He opted for a natural-looking set of teeth to suit his new image, and before-and-after photos showed just how much the transformation boosted his confidence.

Meanwhile, Belinda told Daily Mail Australia that she will be walking down the aisle for real next year.

The couple celebrated their engagement at a lavish party in Melbourne back in April.

They both shared a series of photos to social media as they danced and posed with friends and family at the private party.

Guests were treated to an array of cocktails while violinists played music at the lavish home.

The pair announced their engagement back in February last year, telling Daily Mail Australia that Hayden's unique Valentine's Day proposal included a treasure hunt at the Botanical Gardens. 

Hayden, who is the former owner of swanky Melbourne hotspot Morris Jones, added his proposal caught the attention of the public, who burst into applause after Belinda said yes and accepted his dazzling engagement ring.