There was a lot of drama on Married At First Sight Australia (MAFS) 2025, but few participants got people talking like Tim Gromie did. MAFS Tim, a primary school teacher in Victoria, participated in the social experiment with the hope of finding true love. However, throughout his brief tenure on the show, there was a lot of drama, controversy and public indignation, which resulted in a dramatic early departure and effects that extended beyond the show.
This article discusses who MAFS Tim is, what happened during his brief marriage to Katie Johnston and how the MAFS experience influenced his personal and professional life.
Tim Gromie, 38, lives in remote Victoria and is a devoted teacher. Friends and coworkers described Tim as “a big teddy bear,” “gentle” and “thoughtful.” Many people were surprised when he joined MAFS Season 12. According to the show’s introduction, his motivation stemmed from a genuine desire to emotionally connect with someone after years of failed relationships.
Tim may not have seemed like a good fit for reality TV, but his background added a realistic, down-to-earth spirit to a season packed with giant personalities.
Tim was paired with Katie Johnston, 37, the CEO of a restaurant in Queensland. On their wedding day, there were plenty of classic MAFS sparkle and smiling photos, but things quickly changed. Tim told Katie that she wasn’t his “usual type” just hours after they married. He said he preferred ladies who were “short, blonde, and petite.”
Katie and the audience were not pleased with that first impression. For the next week, there was emotional distance, awkward conversations, and obvious discomfort. Katie attempted to become part of the process, but Tim appeared to lose interest early on. Even though the MAFS specialists advised them to have an open mind, the bond never developed.
After the initial commitment ceremony, Katie and Tim left the experiment, becoming the first couple of the season to do so.
Several people on social media were upset by what Tim stated on air. Many individuals accused him of body-shaming and gaslighting and hashtags such as #TeamKatie gained popularity on X (now Twitter). Fans instantly pointed out how cruel his statements were and how he refused to accept responsibility for his actions.
People who were not fans of MAFS also criticised him. Teachers, parents, and other education professionals were concerned about how his attitude would impact his career as a teacher. Soon after the explosion, it was revealed that Tim had shut off his Facebook and Instagram accounts.
Some news outlets even speculated that being on MAFS may have made things more difficult for him at work, but his company never confirmed this.
After MAFS, Tim Gromie pursued a peaceful life and had time to reflect, unlike other participants who capitalised on their popularity. He went away from the public eye following the experiment. He hasn’t given any interviews, avoided podcasts and radio talk shows or worked with influencers or reality TV.
He didn’t stay on the show very long, but it had a significant impact on him. People have discussed his story in the context of reality TV personalities’ moral responsibilities and what happens when something becomes viral for the wrong reasons.
Tim’s story serves as a warning to many Australians about appearing on television, especially in an era where emotions, reputations, and vocations are all scrutinised nationally.
Reality television has long combined reality and entertainment. Tim, who started the MAFS process with seemingly good intentions, learned how quickly people’s opinions can shift. A poorly worded remark or a moment of uncertainty can make the news.
Some major things he discovered throughout the process are:
Tim Gromie’s brief appearance on Married At First Sight Australia Season 12 left a lasting impact, whether positive or negative. Even though he may have had good intentions at the beginning, the manner he behaved in his on-screen relationship called into question his emotional maturity, communication skills, and respect.