Mary Mouser’s relationship status has long been a subject of curiosity among fans, and for good reason. The Cobra Kai star, best known for her role as Samantha LaRusso, recently made headlines for her engagement to her co-star Tanner Buchanan. While the speculation had been ongoing for years, the couple officially confirmed their engagement on February 13, 2025, the same day the series finale of Cobra Kai premiered.
Mary Mouser Is Not Married, but She Is Engaged to Her Boyfriend Tanner Buchanan
Mary Mouser and Tanner Buchanan first met in 2017 on the set of the hit Netflix series Cobra Kai. Initially, their relationship was purely professional, but as filming progressed, their friendship deepened. By 2018, during the show’s second season, their bond was undeniable, leading to rumors that their on-screen chemistry might be translating into something more off-screen. However, at the time, both actors were in committed relationships. Mouser had been dating actor Brett Pierce since 2015, while Buchanan was involved with actress Lizze Broadway.
The first signs of Mouser and Buchanan’s evolving relationship came in early 2021 when fans noticed that Mouser had stopped posting about Pierce. Unlike previous years, where she had celebrated their anniversaries on social media, 2021 passed without a mention of their relationship. Around the same time, Buchanan and Broadway also seemed to drift apart, with their last known public appearance together taking place in January 2022. Broadway later confirmed that she had been single for some time, fueling speculation that Buchanan was also exploring a new chapter in his personal life.
By mid-2022, Mary Mouser and her secret boyfriend Tanner Buchanan were frequently seen together outside of work. They were spotted wearing matching necklaces with each other’s initials, attending events as a pair, and even going on trips together. One of the biggest hints came when Mouser visited Buchanan’s hometown in Ohio in July 2022. While she did not directly confirm her visit was related to Buchanan, fans quickly connected the dots. Later that year, they were seen together at various concerts, including a Taylor Swift show and a Los Angeles Rams game, which Buchanan attended with his family and Mouser’s best friend.
In late 2022, the couple subtly hinted at their relationship through social media. They posted nearly identical pictures from Disneyland Paris, seemingly confirming their romantic involvement. By the end of 2023, Mary Mouser and Tanner Buchanan had taken a step back from social media, likely due to privacy concerns and the ongoing SAG-AFTRA strike. However, they were still frequently spotted together at events, such as a Pierce The Veil concert and a trip to Greece in the summer of 2023, where a fan revealed that they had been part of the same travel group.
The engagement rumors began in late 2024 when fans noticed that both Mouser and Buchanan were wearing matching rings on their left hands. Initially, the couple seemed to downplay the significance of the rings, but during Cobra Kai’s final press tour, Buchanan was seen wearing his ring more openly. Mouser even appeared to have an engagement ring during an interview on The Tonight Show Starring Jimmy Fallon. Buchanan had previously stated in an interview that he would never wear a ring on that finger unless he was actually married, leading fans to speculate that the two had already taken a significant step in their relationship.
In May 2024, Buchanan made a grand romantic gesture for Mouser’s birthday by organizing a Taylor Swift “Eras Tour”-themed party. The event was inadvertently revealed by a Cobra Kai makeup artist in a now-deleted video, further solidifying that their relationship was serious.
Finally, on February 13, 2025, Mouser and Buchanan confirmed their engagement with a heartfelt Instagram post. “We’re so happy to finally share that we’re engaged. This is such a special moment in our lives, the closing of one chapter and celebrating the continuation of another,” they wrote in a joint statement. The post included intimate photos of the couple, capturing their undeniable chemistry and happiness.
Tanner Buchanan & Mary Mouser seemingly confirm their relationship at the Cobra Kai series finale premiere, sparking engagement rumours with their matching rings 🥹💍 #MTVCeleb pic.twitter.com/0CyQIkwtJH
— MTV UK 💛 (@MTVUK) February 13, 2025
Mary Mouser and her soon-to-be husband Tanner Buchanan’s love story is one that has unfolded over years, from co-stars to best friends and, finally, to life partners. With Cobra Kai now concluded, the couple is set to begin a new chapter together, much to the delight of their dedicated fans. Whether on-screen or off, their connection is undeniable, and their engagement is all the evidence you need of the deep bond they share. Congratulations to the happy couple!
