7 Shocking Facts About Gaten Matarazzo's Girlfriend, Elizabeth Yu: The 7-Year Love Story

The relationship between Stranger Things star Gaten Matarazzo and actress Elizabeth “Lizzy” Yu is one of Hollywood's most enduring and low-key love stories, shattering the myth of short-lived young celebrity romances. As of December 11, 2025, the couple remains happily together, having recently celebrated over seven years of dating since they first got together in March 2018. Their bond has only deepened as they've navigated major career milestones—Gaten with the final season of Stranger Things and Lizzy with her breakout role as Princess Azula—and even taken the significant step of moving in together, proving their commitment is built to last.

Far from a fleeting fling, the commitment between Gaten Matarazzo and Lizzy Yu is a refreshing narrative in the celebrity world, marked by mutual support, shared privacy, and a seamless transition from teen sweethearts to a mature couple. This deep dive reveals everything you need to know about Lizzy Yu, the woman who has been Gaten's steady partner for over seven years, and the surprising facts about their life together, from their New Jersey home to their individual, high-profile career successes.

The Power Couple's Profiles: Gaten Matarazzo & Elizabeth Yu

Before diving into their relationship timeline, it’s essential to understand the impressive individual careers and backgrounds of both Gaten Matarazzo and Elizabeth Yu. They are both highly successful young actors who started their careers on the stage and screen, a shared history that forms a powerful foundation for their long-term relationship.

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Gaten Matarazzo III: The Dustin Henderson Profile

• Full Name: Gaetano John Matarazzo III
• Date of Birth: September 8, 2002
• Age (as of late 2025): 23 years old
• Hometown: Little Egg Harbor Township, New Jersey, U.S.
• Breakout Role: Dustin Henderson in the Netflix series Stranger Things (2016–present).
• Other Notable Work: Broadway roles in Les Misérables and Dear Evan Hansen, hosting Prank Encounters, and starring in the film Honor Society.
• Net Worth: Estimated to be around $5 million.
• Health Advocacy: Gaten is a prominent advocate for Cleidocranial Dysplasia (CCD), a rare genetic condition he was born with, which affects bone and teeth development.

Elizabeth "Lizzy" Yu: The Princess Azula Profile

• Full Name: Elizabeth Yu (often goes by Lizzy)
• Date of Birth: October 6, 2002
• Age (as of late 2025): 23 years old
• Hometown: New Jersey, U.S.
• Breakout Role: Princess Azula in the Netflix live-action adaptation of Avatar: The Last Airbender (2024).
• Other Notable Work: She garnered critical acclaim for her role as May December’s daughter, Mary Vanderhill, in the Todd Haynes film May December (2023).
• Career Start: Like Gaten, Lizzy has a background in musical theater.
• Education: She studied at the Professional Performing Arts School in New York City.

From Hawkins to Azula: A 7+ Year Relationship Timeline

The longevity of Gaten and Lizzy’s relationship is what truly sets them apart from many of their Hollywood peers. They began dating in their mid-teens, far before Lizzy’s major career breakthroughs, fostering a connection built away from the intense media spotlight that now follows them both.

Their story is a testament to consistency and private support, with Gaten often referring to Lizzy as his best friend.

The Key Milestones of Their Enduring Romance

The couple officially started dating in March 2018, just as Gaten’s fame from Stranger Things was soaring. This timing meant their relationship was established before the full weight of global celebrity descended, allowing them to build a strong, private foundation. They celebrated their fifth anniversary in 2023, with Matarazzo sharing a heartfelt tribute on social media, a rare glimpse into their private life.

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A significant, very recent milestone is the couple moving in together. Gaten has publicly mentioned that he and Lizzy now live together in New Jersey. This move signifies a major step in their commitment, transitioning from long-term dating to cohabitation as they enter their early twenties.

Lizzy has become a fixture in Gaten’s professional life, often accompanying him to premieres and events. In 2024, the roles were reversed when Gaten proudly supported Lizzy at the premiere of Netflix's *Avatar: The Last Airbender*, where she plays the formidable Princess Azula. Their joint appearances at such high-profile events, including a Broadway show in July 2024, confirm their solid, supportive partnership.

The couple's low-key, drama-free approach has earned them a reputation as one of the most stable young couples in the industry. They prefer quiet dates and spending time with family over public spectacle, which has likely contributed to their ability to maintain a healthy relationship despite the pressures of Hollywood.

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Beyond the Screen: How They Navigate Fame and Advocacy

Both Gaten and Lizzy have used their platforms to discuss important personal and professional topics, adding depth to their public image beyond their on-screen characters. This shared sense of purpose and maturity is a key element of their relationship's strength.

Gaten's Advocacy for Cleidocranial Dysplasia (CCD)

One of the most defining aspects of Gaten Matarazzo's public life is his openness about living with Cleidocranial Dysplasia (CCD). He has used his platform to educate millions about the condition, which affects bone and teeth development.

This advocacy has had a massive impact, with studies noting a significant increase in public awareness of CCD after Gaten discussed it on Stranger Things. He has undergone multiple surgeries related to the condition and consistently speaks out to normalize the experience and raise funds for the non-profit organization CCD Smiles.

Lizzy Yu's quiet support for Gaten’s advocacy work and his health journey is an unspoken layer of their commitment. Navigating a rare health condition together in the public eye requires a level of maturity and partnership that speaks volumes about their bond.

Lizzy Yu’s Breakout Role and Career Trajectory

Lizzy Yu’s career has exploded recently, moving her from "Gaten Matarazzo’s girlfriend" to a leading actress in her own right. Her role as Princess Azula in *Avatar: The Last Airbender* is a major, high-profile project that has brought her massive global recognition.

Her performance in the critically acclaimed film *May December*, alongside Hollywood heavyweights like Natalie Portman and Julianne Moore, further cemented her status as a serious dramatic actress. The fact that Gaten and Lizzy are both experiencing career peaks simultaneously—Gaten filming the highly anticipated Stranger Things Season 5 and Lizzy starring in a major Netflix fantasy epic—means they share a deep understanding of the unique demands of their industry.

Their joint success, combined with their decision to maintain a stable home life in New Jersey, suggests a focus on long-term stability rather than the chaotic, transient lifestyle often associated with young Hollywood.

The Future: Marriage and Continued Success

While there are no official announcements of an engagement, their seven-year-long relationship, combined with the recent step of moving in together, suggests a serious long-term commitment. They have built a relationship that has endured the transition from child actors to adult professionals, a feat few young celebrity couples achieve.

As Gaten wraps up his time on Stranger Things and Lizzy continues to build her film and television career, their shared future looks bright. Their story is a refreshing reminder that even in the whirlwind of Hollywood, a stable, supportive, and long-lasting relationship is possible when two people are genuinely committed to each other and their shared life.