Mark and Katherine play "bad cop" for T.R. Knight

This past weekend T.R. Knight performed in a benefit for Grey's Anatomy crew affected by the writers' strike and it looks like he got swept up in the glitz and glamour of the evening. From the looks of this video, Knight was enjoying the moment and signed autographs for as many people as he could, even as new boyfriend Mark Cornelsen and BFF Katherine Heigl tried to drag him away repeatedly (presumably to get backstage). Some sites are running this video saying that Katie is being controlling, but really, look at the smiles on their faces. It's totally cute. And hey, someone's gotta be "bad cop", right? (More pics like the one above over at A Socialite's Life.)