Lena Dunham reveals intimate details of her 6-year relationship with Jack Antonoff in her memoir "Famesick," including her dependency and their 2017 breakup.
- April 15, 2026
AceShowbiz - Lena Dunham has revealed intimate details about her relationship with ex-boyfriend Jack Antonoff in her recently published memoir, Famesick.
In the memoir, Dunham reflects on the early stages of their romance, describing Antonoff as a man with "strong arms" and "good instincts," recalling how models on video shoots would slip him their numbers on napkins. She admits that as their bond grew, she began to depend on him for more than just love and companionship. His affection provided her with reassurance that she was beautiful and lovable, validated by someone who had many options but chose her.
The couple was introduced by Jack Antonoff's sister, Rachel Antonoff, and started dating shortly after he invited Dunham to dinner via email. Their relationship lasted nearly six years, ending in December 2017 following Dunham’s hysterectomy surgery.
One of the most startling revelations in Famesick is Dunham’s admission that she cheated on Antonoff just one week before their breakup. She initiated the split on a Saturday morning. She describes waking up to find him in the kitchen, and although they ordered breakfast from a diner they had a charge account with, she couldn’t eat or speak. Tearfully, she told him, "I think we both know ... we haven’t been making each other ha-a-appy."
The pair shared a tearful moment, touching foreheads and crying together. Dunham recalls asking, in a moment of confusion, if they could still go on dates despite their breakup. They exchanged all the kind words they might have wanted to hear from each other before parting ways.
Following Antonoff’s departure on tour after their worst fight post-surgery, Dunham reconnected with an old friend and ex-boyfriend named Nick. They had kept in occasional email contact over the years. Dunham explained that before, she had adhered to what she called "wifely code"—maintaining boundaries in her relationships. But recent events changed her perspective, leading her to focus on survival rather than strict fidelity.
During this time, Dunham went on a date and took a cab back to Nick’s apartment, telling him she had endured something terrible and needed him to take the lead physically. Their relationship continued for two weeks while Antonoff was touring. After her breakup with Jack Antonoff, Dunham and Nick even became "engaged," though their relationship ended following her rehab stay in April 2018.
In her memoir, Dunham also subtly addresses rumors about Antonoff cheating. She mentions receiving frequent emails from Nick during her relationship with Antonoff, but she carefully avoided responding in ways that would break boundaries. She admitted to never completely stopping flirting despite being in a relationship. Dunham reflected that while she maintained careful limits, Antonoff may not have been as disciplined. She acknowledged that the internet dissected their relationship extensively, producing convincing arguments that made her reconsider events she had witnessed firsthand.
Dunham expressed discomfort with Antonoff spending long hours in the studio with a "teen pop star," mentioning an incident where she came home to find the singer crying in his lap. This has fueled speculation about Antonoff’s rumored relationship with collaborator Lorde.
During her April 2018 rehab stay for Klonopin addiction, Dunham befriended a 19-year-old fellow patient who was listening to a song written by Antonoff. The song was reportedly penned after he missed a hospital visit to see Dunham while working with Pink. Dunham chose not to inform the young woman that her ex had produced it, feeling it would be cruel given the song’s backstory involving Antonoff’s fears about MDMA affecting his health.
After the split with Antonoff, Dunham began a new relationship with Luis Felber, whom she has shared publicly on social media. She has openly gushed about their romance, marking a new chapter following her breakup with Antonoff in early 2018.
One poignant anecdote in Famesick recounts Dunham sitting next to Bruce Springsteen during a night out, where she vented raw emotions about her breakup. She recalls telling Springsteen how she felt betrayed and hurt by Antonoff, expressing frustration and pain in a stream of words. Springsteen responded empathically, sharing insights about the challenges artists face in expressing suffering through art. He advised her to stop writing if it became boring and to remember that honesty doesn’t require revealing every secret, only the workings of the mind.
In the epilogue of her memoir, Dunham reflects on Antonoff’s marriage to actress Margaret Qualley, whom she had once befriended. She describes the deep sadness she felt upon seeing paparazzi photos of them kissing on the Brooklyn Bridge, knowing that others might misinterpret her feelings as jealousy. Instead, she mourned the loss of a friendship and the relationship she once had.
Jack Antonoff and Margaret Qualley were first linked in 2021 and married in 2023, marking a new chapter in his life after his relationship with Dunham.
Through Famesick, Lena Dunham offers a candid and vulnerable glimpse into the complexities of love, loss, and self-discovery, revealing the highs and lows of her years with Jack Antonoff.