Sienna Miller's ex Tom Sturridge proposes to her best friend Alexa Chung with 'haunted'…

Tom Sturridge has confirmed his engagement to Alexa Chung, the best friend of his ex-partner Sienna Miller, marking a new chapter for their uniquely amicable blended family. The Daily Mail reported ^[1] that the couple, who have been together for four years, shared the news this week after Sturridge proposed with a 'haunted' Tudor ring.

Miller, 44, and Sturridge, 40, split in 2015 but have maintained a close bond while raising their daughter Marlowe, now 14. The Daily Mail noted ^[2] that the pair have mastered healthy co-parenting, a dynamic so seamless that Miller’s current engagement to actor Oli Green, 29, coexists happily with Sturridge’s romance with Chung.

The couple’s unity was on full display at Wimbledon in 2022, where the group captured a collective photo from the spectator seating. In a 2023 Vogue interview, Miller described dinners with Sturridge, Chung, Green, and Marlowe as "very loving and cozy and great," adding, "It's ideal. It's incredible. We are very lucky."

Miller previously told Harper's Bazaar that Sturridge remained her "best friend in the entire world," explaining that their breakup was not acrimonious. "We still love each other," she said, noting that they often stay together to spend time with their daughter. This unconventional arrangement saw the group, including Sturridge’s then-girlfriend, living together in Upstate New York during the pandemic to co-parent.

Chung, who shot to fame co-hosting Channel 4's Popworld, had previously expressed scepticism about marriage. In a 2018 interview with Porter magazine, she stated she did not need "a wedding day per se." However, speculation grew in 2023 when she was spotted with a ring at Henry Holland’s birthday party, and again in 2024 during Paris Fashion Week. The engagement was rumoured then, though neither party publicly confirmed it until now. Reports from 2024 suggested the couple hoped for an intimate wedding, but this has not been confirmed.

Miller recently referred to Chung as her daughter’s "stepmum" in an interview with The Observer, praising her social media skills. She also joked that Marlowe prefers Chung’s style, admitting the model is "much more fashionable" than she is. The couple’s high-profile appearances, including the Met Gala in May 2026, underscore their public embrace of this modern family structure.

Miller’s own romantic journey includes a brief romance with Archie Keswick and an engagement to Lucas Zwirner that ended in 2021. She met Green at a Halloween party in 2021. Despite different paths, the former partners continue to prioritise their daughter’s well-being, proving that Hollywood breakups need not end in drama.