The 36-year-old White Collar star told Details magazine this month that he married his partner, Hollywood publicist Simon Halls, back in 2011.
Bomer stars in an upcoming TV adaptation of The Normal Heart, Larry Kramer's 1985 play about the HIV-AIDS epidemic in New York City.
The openly gay actor acknowledged the work of activists like Kramer.
"I wouldn't have a lot of the rights I have today if it wasn't for people like Larry," he said, including his right to marry Halls (in some states). The couple now has three sons.