I'm not sure exactly what Mark Cornelsen does and/or how he and "Grey's Anatomy" star, T.R. Knight, met but dayum, he is cute. The two are dating and were spotted here hustling back to their car at Royce Hall at the UCLA Campus in Westwood.
I can't tell if they were hustling to rush past the paparazzi or to try and shake Katherine Heigl, who seems kind of high-maintenance, if you ask me. If she's not complaining about the movie that launched her movie career, then she's bagging on her new husband. Run, T.R., Run.
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Photos: Splash
More photos of T.R. Knight, his boyfriend Mark Cornelsen along with Katherine Heigl are after the jump.
(Hint: right-click with your mouse to open the thumbnails up in a new window or tab.)
Photos: Splash

































matt186 says:
It's so great to see photos of beautiful gay couples! Who new that this day would come? Now if just more of Hollywood would come out of the closet.
oakling says:
Awww. Them and Portia and Ellen are so preeeeetyy.
Glenn I says:
Yeeah. These're the kindsa celeb photos I wanna be seeing.
Jake says:
OMG!
TR is cheating on me?
Zelda F. says:
Yes, how well said, "who new"..........
jily says:
i am hot Kily who is interested in dating, I'm wondering if I can find my sweet heart guy enjoy the same with me. Even in different backgrounds...check my hot pics and videos with perfect music on multiraciallove.com you might be surprised
Brian says:
This is pretty gross. A 19 year old boy dating a 34 year old man. Wonder how long this has been going on.