Yep, It’s Time for a Deep Dive Into Lili Reinhart and Jack Martin’s Seriously Cute Relationship

ICYMI, Lili Reinhart is easily the luckiest girl in the world right now. Not only is she adapting and starring in The Love Hypothesis, she also gets to have incredibly steamy scenes with her co-star Tom Bateman...and gets to go home to her IRL boyfriend, Jack Martin, who is equally gorgeous. Some people really do have it all!Lili and Jack also have the sweetest relationship, too—from sharing adorable selfies with each other on days where they’re just goofing off, to Jack truly supporting Lili on the days where she’s ill. There are many reasons to ‘ship these two, which I have compiled into a handy-dandy timeline for you to obsess over. You’re welcome!Jump to:April 2023July 2023August 2023September 2023February 2024September 2024January 2025April 2025November 2025March 2026June 2026September 2026April 2023Starting off strong! Lili is spotted passionately kissing Jack at the airport in Los Angeles—and there are pictures to prove it.July 2023Lili gets featured not once, but TWICE in Jack’s Instagram carousel post, which he fittingly captioned, “Unbelievable, even egregious amounts of Smiling and Chilling.”August 2023Lili made the sweetest declaration of love in honor of Jack’s birthday, sharing a series of snaps of the birthday boy, including their first public photo together. :’)“I’m so grateful for the light you’ve brought into my life. Happy birthday, mon petite,” she captioned the image.InstagramSeptember 2023 It’s an eventful September for the couple—Lili and Jack make their formal debut together at the Venice Film Festival, looking super glamorous at an event with Armani.Jacopo Raule//Getty ImagesNot long after, Jack celebrated Lili’s birthday with a touching tribute shared to his Instagram Story. “It’s the most beautiful person’s birthday,” he wrote on September 13. “Thank you for making me the happiest I’ve been and being endlessly fucking funny. I’m so grateful I met someone so empathetic, strong, insightful and loving.”Instagram//InstagramInstagram//InstagramFebruary 2024Lili and Jack celebrate their first Valentine’s Day—to mark the occasion, Lili shared an image of her and Jack sharing a sweet kiss and posted it to her Instagram Story.instagram//InstagramSeptember 2024 Lili and Jack looked stylish as ever for their first fashion week together, attending the London Fashion Week’s closing party (and matching in all black ensembles to boot).Dave Benett//Getty ImagesJanuary 2025 Lili took a moment in her Instagram Story to give a thank-you to Jack for staying by her side while discovering her chronic illness.“Never in my life could I have gotten through this without my partner,” she shared. “It’s not easy to have a chronically ill girlfriend—when I spent months barely leaving the house, couldn’t walk due to pain, and felt incredibly depressed due to the shift in my quality of life. Jack’s love and support has never waivered for a second during a time when my body was truly falling apart.”Instagram//InstagramApril 2025Literally no major update here to share BUT take a look at these super cute photos Jack and Lili have from a date to a rose garden!!!November 2025Lili rarely gives interviews about her relationship, but in her Marie Claire feature, she was in her “lover girl era” because of her relationship with Jack.“It’s deeply hard on me to be apart from the person I love,” she shared. “I’m a very domestic woman, and I love to be at home and sit on my couch with my person and my dog; there’s nothing that brings me greater joy than that specifically and when I can’t do that, my mental health suffers.”Lili continued, “When I’m working, he visits me; when he’s working, I visit him; and if we’re both working at the same time, which happened a lot this year, we just have to put our heads down and get through it. The feeling of missing someone prolonged over eight weeks is exhausting.”March 2026 Jack joined Lili at SXSW while she was out supporting her film, Forbidden Fruits, resulting in this absolutely adorable moment between the both of them in slide six of her carousel post.June 2026While sitting down for an interview with Entertainment Tonight, Lili was informed of some kind words that Jack said about her.“I love her more than anything. What else can you say? I am grateful for her literally every day. She is the kindest person I’ve ever met,” he said. “She's so empathetic, and wonderful, and sweet. She's the best. I miss her right now.”Lili, naturally, couldn’t help but blush and return the kind words. “We’re usually pretty private. We try to be private, but we’re together, and we’re happy to be together so to hear him say that is wonderful and I echo the same sentiment,” she said in response. “He is the most supportive person who’s ever been in my life and I’m so grateful to have someone like him be my partner.”September 2026Don’t expect Jack to be surprised when those sex scenes in The Love Hypothesis come up: “I remember reading the [hotel-room] sex scene [in The Love Hypothesis] on an airplane, and it was funny. Jack, my boyfriend, was next to me, and I would show him a little bit of the chapter on the page,” she told ELLE.