American writer and director, Lena Dunham is currently making headlines for her biography, Famesick: A Memoir, which was released on April 14, 2026. The 39-year-old bared her heart in the memoir, which reflects on her rise to fame, illness, and dating controversies. The parts of her book which are particularly generating buzz online are her complex working relationship with former Girls co-star, Adam Driver and her admission of cheating on her ex-boyfriend, Jack Antonoff.
Lena also shared that she didn’t take their breakup well and ended up trauma dumping on actor, Bruce Springsteen, who provided her with much-needed support at that time. Amid the explosive revelations, here’s a look at Lena and Jack’s relationship timeline and their messy split due to cheating and other reasons.
Who is Lena Dunham’s ex-boyfriend, Jack Antonoff?
By
