Felicity Huffman and William H. Macy, 12 Years
The Desperate Housewives actress dated the Shameless actor off and on for 15 years until marrying in 1997. Macy was 47, Huffman was 35. "I was so scared of marriage that I thought I would've preferred to step in front of a bus," Huffman said.
The King and Queen of Bhutan, 10 Years
King Jigme Khear Namgyel Wangchuck, 40, and his wife Jetsun Pema, 29, met when she was just 7 years old. Though she doesn't have any royal connections by blood, her family does have lots of political connections to the royals. When they met, she innocently confessed her love for the prince, and they promised that if they were still single when they were older they would get married.