#19: Ben Affleck and Jennifer Garner

Duration of Relationship: 10 years (2005–2015)

The end of Jennifer Garner and Ben Affleck’s decade-long marriage in 2015 was a bittersweet moment for the couple’s fans. Despite their strong family bond and three children, their relationship began to unravel amid rumors of Affleck’s struggles with addiction and infidelity, including a controversial affair with their children’s nanny.

Both stars publicly respected one another, even vacationing with their kids post-split, emphasizing their commitment to co-parenting. Garner later admitted that their relationship had long been complicated, but she continued to support Affleck through his challenges.