MacLachlan's Love Triangle: Twin Peaks Costar Broke Up My Relationship

Kyle MacLachlan's memoir, 'Fictional Selves,' set to release on September 29, 2026, details a tumultuous period in his romantic life. During the late 1980s and early 1990s, MacLachlan began dating Laura Dern after meeting her on the set of 'Blue Velvet' in 1986. He described Dern as having "a certain allure" and being "gorgeous." However, his focus shifted when he met 'Twin Peaks' co-star Lara Flynn Boyle. MacLachlan described Boyle as "sexy and edgy," a stark contrast to anyone he had dated previously. This new relationship, which began while he was on location, ultimately "destroyed" his relationship with Dern. MacLachlan expressed regret, stating he "did not handle that well, especially for Laura." Despite the difficult end to their romance, MacLachlan and Dern have since mended their relationship and are now close friends. MacLachlan praised Dern for her kindness and understanding over the years, noting her "wonderful mix of qualities," including humor, intelligence, and empathy. MacLachlan and Dern even reunited onscreen in 2017 for 'Twin Peaks: The Return,' a collaboration MacLachlan found "brilliant." While MacLachlan dated costars in the past, he eventually married Desiree Gruber in 2022. They share a son, Callum.