I had no idea they were together, but they just got married:

CONGRATS TO South Philly-raised Rob McElhenney and Kaitlin Olson, his co-star on "It's Always Sunny in Philadelphia," who were married Saturday in Malibu.

"Sunny" stars Danny DeVito, Charlie Day, Glenn Howerton and crew from the raunchy FX comedy attended the afternoon wedding at a vineyard.

Fred Savage, who directs some "Sunny" episodes, and "Bones" star Emily Deschanel were also among guests at the nuptials.

McElhenney, a St. Joe's Prep grad, and Olson became engaged in December, after dating two years.

Link(Philadelphia Daily News)