Jim Parsons and Todd Spiewak – 3 years
The actor and comedian were most known for his role as Sheldon Cooper in the popular TV series The Big Bang Theory, which has been a huge success worldwide. Despite being together for almost 15 years, they decided to wed in March 2017.
In an interview with Stephen Colbert, Jim Parsons said that they never cared about being married because they got married so long after. It was much more significant to Jim than he could have imagined once they married.