1. Sarah Michelle Gellar and Freddie Prinze Jr. Then
These two lovebirds got together in 2000 and are still very much in love. "I love you not only for what you are, but for what I am when I am with you. I love you not only for what you have made of yourself, but for what you are making of me," the actress wrote on Facebook alongside their snapshot for their 13th wedding anniversary.