But one might wonder if that title is still accurate, as fresh photos emerge of the 29-year-old videographer putting on a tactile display with new wife Lauren Huntriss.
The Queensland native couldn't keep his hands off the New South Wales makeup artist as they shared a tender moment outside an Asian restaurant.
Dressed casually in dark wash jeans and high top sneakers, Matthew wrapped his arms round Lauren's petite waist and pulled her close for a sweet kiss.
Looking seasonally stylish, Lauren, 31, opted for a flowing black maxi skirt and a vibrantly printed shirt paired with towering nude wedges.
The beauty professional wore a slick of red lipstick and pulled her blonde tresses into a sleek, low bun.
The couple appear to be going from strength to strength since saying "I Do" on the Channel 9 social experiment.
Despite choosing not to consummate their relationship on their wedding night, the duo proved they are more in sync than ever as Lauren threw her head back in laughter beside her new man.
Matthew famously opened up to Lauren at the end of their reception, telling her: "I've sort of been on the fence about whether or not I should tell you because you know it's been weighing on me a bit, it's a big thing.
"I'm actually still a virgin."
As the show's matchmakers predicted, kind hearted Lauren assured her husband "this changes nothing" and promised she was willing to take things slow.