The Big Bang Theory star, Jim Parsons, has been dating Todd Spiewak, for over 10 years now. While Parsons rarely speaks about Spiewak publicly, he makes sure to thank him during his biggest moments.

At the 2013 Emmys awards, for example, Parsons gave a special shout out to Spiewak, who was sitting in the crowd.

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"Oh, my favorite person on the planet, Todd Spiewak," he said after he won the award for Outstanding Lead Actor in a Comedy Series.

He also mentioned his partner's name when he accepted the same honor at the Emmys in 2010 and during his 2011 Golden Globe win. Aside from award shows, the couple has been spotted hanging out several times, including at the 2013 U.S. Open and also enjoying some lunch together.

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Parsons' sexuality was revealed during an interview with The New York Times in May 2012 when writer Patrick Healy discussed the actor's role in The Normal Heart.

"The Normal Heart resonated with him on a few levels: Mr. Parsons is gay and in a 10-year relationship, and working with an ensemble again onstage was like nourishment," he wrote.

Scroll through our gallery to see some photos of Parsons.