John Stamos and Caitlin McHugh — 23 years
The couple officially started dating in 2015 when they met while working on an episode of Law and Order: SVU, and they later got engaged at Disneyland, which is McHugh’s favorite place. In 2018, they became parents to their first child, a son whom they named Billy. After the birth, Stamos wrote on Instagram, “From now on, the best part of me will always be my wife and my son.”
It's not like the women are teens... Most are at least 30.