T.R. Knight negotiating 'Grey's Anatomy' exit

So Grey's Anatomy is one of my all time favorite show and i was on the computer and this header shocked me. The character of George played by T.R. Knight might leave the show. I read that he wants more air time because in the past episodes of the current season he has had the least amount of air time of all the main charecters. It has been said that he has been unhappy since the name calling by other actors on the set. I hope that he doesn't leave the show because i think hwe has a lot to give if he is given the chance.