On February 12th, engagement speculation ignited when the costars flaunted coordinating rings at the series finale event for "Cobra Kai." The couple then officially announced their relationship on social media the next day, accompanied by enchanting photos from their memorable evening. In the couple's joint Instagram post, Tanner captioned, "We're thrilled to finally reveal that we're engaged." He continued, "This marks an extraordinary milestone in our lives, as we conclude one chapter and eagerly embark on another." The 26-year-old added, "We're deeply appreciative of the love and support we've received. Although we cherish our private moments, we're excited to share this glimpse into our world."
In the Netflix drama, which serves as a sequel to the "Karate Kid" film series, 28-year-old Mary portrays Sam LaRusso, the daughter of karate champion Daniel LaRusso (played by Ralph Macchio), while Tanner stars as the once-estranged son of Daniel's long-time adversary Johnny Lawrence (played by William Zabka). Jon Hurwitz, the series creator, couldn't resist taking a bit of credit for facilitating the off-screen romance. "We're matchmakers first, showrunners second," he joked in a post on X (formerly Twitter). "Our primary objective with 'Cobra Kai' was for Daniel LaRusso's daughter and Johnny Lawrence's son to fall in love in real life. Mission accomplished. We're so happy for them! They make the perfect couple!"
Since the series debuted in 2018, the soon-to-be spouses have shared the screen but have largely kept their personal relationship under wraps. However, over the years, they have spoken highly of each other. For instance, Tanner, who was previously in a relationship with "Gen V" actress Lizze Broadway, praised Mary's martial arts prowess. "She's really come a long way over the past few years," he told GQ in 2021, "and she's absolutely killing it."