Billie married television presenter Chris Evans in a secret ceremony at the Little Church of the West in Paradise, Nevada near Las Vegas in May 2001. Their marriage attracted much comment because she was 18 and Evans was 35. The couple separated in 2004 and divorced in May 2007.
Billie married actor Laurence Fox on December 31, 2007, at St Mary’s Church in Easebourne, West Sussex. They have two sons: Winston James and Eugene Pip. By March 24, 2016, the pair had separated after eight years of marriage. On 12 May 2016, the two divorced.
Billie began dating Johnny Lloyd, the frontman of Tribes, in 2016. Their daughter, Tallulah, was born on 2 January 2019.
