Lee and actor Lee Byung-hun began dating in 2006. The couple later broke up, before reuniting in 2012. On August 10, 2013, the couple were wed at the Grand Hyatt Hotel Seoul.[1] In January 2015, it was revealed that Lee was pregnant with their first child.[2] She gave birth to a boy on March 31, 2015.[3] In August 2023, it was announced that Lee was expecting their second child.[4] She gave birth to their daughter on December 21.[5]