Lili Reinhart may be starring in one of 2026’s most talked-about screen romances with The Love Hypothesis, but away from the cameras, the former Riverdale star has been in a steady relationship with actor and comedian Jack Martin for more than three years.
Reinhart and Martin first became publicly linked in April 2023 and remain together as of September 2026. Reinhart recently referred to Martin as her boyfriend while discussing The Love Hypothesis, confirming that their relationship continues even as both actors manage increasingly busy careers.
Who Is Lili Reinhart’s Boyfriend?
Lili Reinhart’s boyfriend is Jack Martin, an American actor and comedian known for television roles as well as the comedy videos that initially helped build his online following.
Martin was born on August 3, 1998, and studied at Georgetown University before pursuing acting professionally. He became widely recognized for playing Josh Harris on NBC’s science-fiction drama La Brea, which ran from 2021 to 2024. His more recent work includes Hulu’s Pizza Movie and Mindy Kaling’s 2026 workplace comedy Not Suitable for Work.
Martin also built a substantial audience through social media, particularly sketch comedy on TikTok, Instagram and YouTube. That online work ultimately played an unexpected role in bringing him and Reinhart together.
How Did Lili Reinhart and Jack Martin Meet?
Their relationship began with TikTok.
Reinhart revealed in a 2025 interview that she noticed Martin after seeing a comedy video he had made poking fun at Riverdale. Rather than simply watching the clip and moving on, Reinhart contacted him directly through social media.
She slid into his direct messages, and the interaction eventually developed into a relationship.
The origin story is particularly fitting given Martin’s career. Before becoming increasingly established as an actor, he was already gaining attention for humorous online sketches.
Reinhart, meanwhile, had spent seven seasons playing Betty Cooper on Riverdale, making Martin’s parody an unusual introduction to someone who had actually starred in the show.
When Did Lili Reinhart and Jack Martin Start Dating?
Reinhart and Martin were first publicly linked in April 2023 when they were photographed kissing outside Los Angeles International Airport.
Their relationship became increasingly visible during the following months. Martin included Reinhart in an Instagram post that summer, and Reinhart later shared photos celebrating his birthday.
By September 2023, the pair had taken another public step by attending events around the Venice Film Festival together.
Despite becoming more public, they have generally avoided turning the relationship into a constant part of their celebrity profiles.
Instead, the couple has shared occasional vacation photographs, birthday messages and event appearances while keeping much of their day-to-day relationship private.
Lili Reinhart Says She Is in Her “Lover Girl Era”
Reinhart offered one of her clearest descriptions of the relationship in a November 2025 interview.
She said she was in her “lover girl era” and spoke openly about how difficult extended periods away from Martin can be when their acting schedules take them to different cities.
At the time, Martin was working in New York on Not Suitable for Work while Reinhart was balancing her own film and television commitments.
Reinhart explained that they make an effort to visit one another during production whenever possible. When both are working simultaneously, however, long-distance periods can become unavoidable.
Those comments offered a rare glimpse into how the couple manages two careers that increasingly require travel and lengthy shoots.
Are Lili Reinhart and Jack Martin Still Together?
Yes. The most recent public evidence indicates Reinhart and Martin remain together in September 2026.
During an interview connected to The Love Hypothesis, Reinhart casually referenced Martin as her boyfriend while describing reading one of the novel’s intimate scenes before filming the adaptation. She said Martin was sitting beside her as she read and that she showed him parts of the book.
Earlier in 2026, Reinhart also included Martin in photographs from SXSW, where she was promoting Forbidden Fruits. The images showed the pair sharing an affectionate moment together.
Martin’s own career has also become more prominent. In 2026, he appeared as Josh Teitelbaum in Not Suitable for Work, while recent coverage of the show continued to identify Reinhart as his partner.
Jack Martin Supported Reinhart Through a Difficult Period
Reinhart has also publicly credited Martin with being a major source of support during a challenging period in her personal life.
In January 2025, she described him as an unwavering partner while she dealt with significant health problems and searched for medical answers. She said his support remained constant during months when her daily life had become considerably more difficult.
The comments were notable because Reinhart is generally selective about how much she reveals regarding her relationship.
Rather than frequently discussing romantic details, she has tended to speak about Martin in terms of companionship, stability and their efforts to stay connected despite demanding careers.
Who Did Lili Reinhart Date Before Jack Martin?
Reinhart’s most famous previous relationship was with her Riverdale co-star Cole Sprouse.
Reinhart played Betty Cooper while Sprouse portrayed Jughead Jones, and their on-screen romance eventually developed into a relationship away from the series.
The two began dating during Riverdale’s early years and had an on-and-off relationship before separating permanently in 2020. Sprouse later confirmed that they had separated early that year and ended the relationship in March.
Their breakup attracted considerable attention because Betty and Jughead had become one of Riverdale’s most popular pairings.
Reinhart has since moved forward with Martin, while Sprouse entered a relationship with model Ari Fournier.
Jack Martin Has Built His Own Acting Career
Although Martin initially attracted attention online, his professional career has expanded well beyond TikTok.
His biggest early television role came as Josh Harris in La Brea. He subsequently appeared in The Rookie and moved into film and comedy projects.
In 2026, Martin starred in Pizza Movie and joined the ensemble of Not Suitable for Work, playing Josh Teitelbaum. The workplace comedy also featured Ella Hunt, Avantika, Nicholas Duvernay and other young performers.
Martin graduated from Georgetown University in 2019 and also trained through programs connected with NYU Tisch School of the Arts and USC’s School of Cinematic Arts.
His growing career means the relationship now involves two actors regularly moving between projects rather than one partner largely accompanying the other.
Reinhart’s Career Is Entering a New Phase
Reinhart’s relationship with Martin has developed alongside a major transition in her own career following Riverdale.
She now stars as Olive Smith opposite Tom Bateman in The Love Hypothesis, Prime Video’s adaptation of Ali Hazelwood’s bestselling novel. The romantic comedy debuted on September 23, 2026.
Reinhart has also expanded her work behind the scenes, serving as a producer on The Love Hypothesis while continuing to take roles outside the teen-drama world that made her famous.
Her relationship with Martin has remained relatively steady through that transition.
More than three years after their first public sighting, they continue to appear together occasionally while maintaining considerably more privacy than many Hollywood couples.
FAQ
Who is Lili Reinhart’s boyfriend?
Lili Reinhart is dating actor and comedian Jack Martin. They have been together since 2023 and remain a couple as of September 2026.
How did Lili Reinhart meet Jack Martin?
Reinhart saw a TikTok video Martin had made joking about Riverdale and contacted him through direct messages. Their online interaction eventually developed into a relationship.
When did Lili Reinhart and Jack Martin start dating?
They were first publicly linked in April 2023 after being photographed kissing outside LAX. They became Instagram official later that summer.
What does Jack Martin do?
Jack Martin is an actor and comedian. He is known for La Brea and has also appeared in Pizza Movie, The Rookie and the 2026 series Not Suitable for Work.
Are Lili Reinhart and Jack Martin still together?
Yes. Reinhart referred to Martin as her boyfriend in a 2026 interview about The Love Hypothesis, providing recent confirmation of their relationship.
Did Lili Reinhart date Cole Sprouse?
Yes. Reinhart dated her Riverdale co-star Cole Sprouse for several years before their relationship ended permanently in 2020.
Is Lili Reinhart married?
There has been no public announcement that Reinhart is married. Jack Martin is publicly identified as her boyfriend rather than her husband.
How old is Jack Martin?
Jack Martin was born on August 3, 1998, making him 28 years old as of September 2026.
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