Source: George O'Malley is Dead

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Citing multiple sources, E! Online reports that T.R. Knight, whose future has been the subject of great debate, will not be returning to Grey's Anatomy next season.

Knight's departure shouldn't come as too much of a shock.

Not only was George flatlining at the end of the season finale earlier this month, but the 36-year-old actor has reportedly wanted off the hit ABC series for some time.

According to reports, tension between T.R. Knight and Grey's Anatomy creator and executive producer Shonda Rhimes became unbearable for both in recent months.

Knight, an original member of the Grey's Anatomy cast, was said to have become increasingly frustrated by his character's lack of storyline and camera face time.

In December, he asked to be let out of his contract.

George in Uniform

Grey's Anatomy insiders say Knight made no secret that he wanted off the show. No word on any future projects for Knight, but he will be free to pursue other things.

Reps for Knight and ABC declined to comment.

Knight's best friend, co-star Katherine Heigl, whose character was also in limbo as the season ended, is supposedly still waiting to learn her fate with Seattle Grace.

Rhimes suppposedly began contemplating an early death for Dr. Isobel "Izzie" Stevens in July after Heigl took herself out of the running for last year's Emmy Awards.

Her reasoning was that the writers failed to give her good enough material to work with, igniting a storm of criticism and speculation that she wanted off the show.

For what it's worth, Entertainment Weekly recently reported that Heigl will submit her name for Emmy consideration this year for her work as cancer-stricken Izzie.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.

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MEREDITH: "You don't get to call me a whore. When I met you, I thought I had found the person that I was going to spend the rest of my life with. I was done! All the boys and all the bars and all the obvious daddy issues, who cares? I was done. You left me. You chose Addison. I'm all glued back together now. I make no apologies for how I chose to repair what you broke. You don't get to call me a whore."
DEREK: "This thing with us is finished. It's over."
MEREDITH: "Finally."
DEREK: "Yeah, it's done."
MEREDITH: "It is done."

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Arizona: No, no, no. It's just that Derek was, Derek was epic for her. They were the great love story. I mean, that girl's heart beat for Derek Shepherd. It just, it never occurred to me that she would ever be with anyone else. He was perfect. He was everything. That man turned her world. It, I spooked you. Don't be spooked.