In an exciting revelation that has thrilled “Cobra Kai” fans worldwide, Mary Mouser and Tanner Buchanan have officially announced their engagement.
The beloved co-stars, known for portraying Sam LaRusso and Robby Keene in the hit Netflix series, shared the news via a heartfelt Instagram post on February 13, 2025.
Their journey from on-screen love interests to best friends and now life partners has been a source of speculation for years, and their engagement confirms what many fans have long suspected.
The Beginning: From Co-Stars to Best Friends
Mouser and Buchanan first met in 2017 on the set of “Cobra Kai,” but it wasn’t until Season 2 in 2018 that they grew closer due to increased screen time together. Their chemistry was undeniable, and while their characters navigated romantic entanglements on-screen, the duo built a strong and genuine friendship behind the scenes.
At the time, both actors were in long-term relationships. Mouser had been dating Brett Pierce since 2015, while Buchanan was in a relationship with actress Lizze Broadway. Despite their commitments, they remained close friends, often supporting each other professionally and personally. Even in 2020, during the pandemic, Buchanan attended Mouser’s surprise Zoom birthday party organized by her then-boyfriend and sister, showcasing the deep bond they shared.
Breakups and Speculation Begin
Fans started noticing subtle changes in early 2021. Mouser’s last social media post featuring Pierce was in November 2020, and her final Instagram story with him appeared in February 2021. She also did not celebrate their anniversary that year, which was unusual. Meanwhile, during “Cobra Kai” Season 3 press tours, she noticeably refrained from discussing her romantic life, something she had done frequently in previous interviews.
Similarly, Buchanan’s relationship with Broadway appeared to end quietly. Their last known appearance together was in January 2022, and over time, they erased each other’s presence on social media. Broadway later confirmed she had been single for a while, adding to the speculation that Buchanan was also navigating a new chapter in his personal life.
Growing Closer: Matching Necklaces, Trips, and More
In May 2022, eagle-eyed fans noticed that Mouser and Buchanan were wearing matching necklaces engraved with each other’s initials. Around the same time, they were frequently spotted together outside of work, including attending events as a pair. Paparazzi captured them leaving an event together, sparking further speculation about a potential romance.
Their bond became even more apparent in the summer of 2022. In July, Mouser was spotted visiting Ohio, Buchanan’s hometown, and later confirmed in an interview that she had been invited there. In September, they had a private photoshoot for their mutual makeup artist, which was never shared on their social media accounts. That same month, they arrived together at the “Cobra Kai” Season 5 premiere.
Throughout 2022, their interactions on Instagram became more playful and affectionate. They frequently referred to each other as “zing,” a term from “Hotel Transylvania,” Mouser’s favorite movie, which signifies a romantic soulmate connection. Fans saw them together at restaurants, weddings, and sporting events, including a Los Angeles Rams game with Buchanan’s family and Mouser’s best friend in November.
The Soft Launch: Disney, Holiday Celebrations, and Social Media Silence
One of the biggest hints of their evolving relationship came in late 2022 when they both posted nearly identical pictures from Disneyland Paris, suggesting a soft launch of their romance. They also spent Christmas and New Year’s Eve together in New York City, and this trend continued into 2023 and 2024.
During 2023, both actors took a step back from social media, likely due to a combination of maintaining privacy and the ongoing SAG-AFTRA strike. However, fans continued spotting them together at various events, including a Taylor Swift “Eras Tour” concert in Atlanta, a “Pierce The Veil” concert, and a protest. In June and July, they went on a private trip to Greece, with a fan later revealing that they had been part of the same tour group.
The Engagement Clues: Matching Rings and Tanner’s Grand Gesture
By the end of 2024, fans began noticing something even more significant—Mouser and Buchanan were both wearing matching rings on their left ring fingers. Initially, they seemed to try to hide them at public events, but during “Cobra Kai’s” final press tour, Buchanan openly wore the ring. Mouser even appeared to be wearing an engagement ring during her appearance on “The Tonight Show Starring Jimmy Fallon.”
Buchanan had previously mentioned in an interview that he would only wear a ring on that finger if he were actually married, fueling speculation that the two had taken their relationship to the next level. Then, in May 2024, Buchanan organized a Taylor Swift “Eras Tour”-themed birthday party for Mouser, which was inadvertently revealed by a “Cobra Kai” makeup artist in a now-deleted video. The gesture further solidified the belief that their bond had deepened beyond friendship.
The Official Announcement: Engaged at Last
On February 13, 2025, Mouser and Buchanan finally confirmed what fans had long suspected—they were engaged. Their joint Instagram post featured a heartfelt caption:
“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. We’re so grateful for the love and support, and though we’re partial to karate battles, this one was won by love.”
Accompanying the post were intimate pictures of the couple, showcasing their undeniable chemistry and happiness.
The Future: A New Chapter Together
As “Cobra Kai” prepares to wrap up its final season, Mouser and Buchanan’s engagement marks a beautiful new beginning for the beloved co-stars. Their journey from castmates to best friends to soulmates has been one of patience, respect, and deep admiration for one another.
Their fans, who have followed their story for years, are ecstatic to witness this next phase of their relationship. Whether it’s in Hollywood, on the red carpet, or in their private moments, one thing is clear—Mary Mouser and Tanner Buchanan’s love story is one for the ages.
Congratulations to the happy couple!
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