T.R. Knight 'splits from boyfriend'

Grey's Anatomy star T.R. Knight has reportedly split from his boyfriend.

The actor, who played Dr George O'Malley in the ABC drama, is alleged to have parted ways with Mark Cornelson after nearly two years.

Speaking to E! Online, an insider said: "It's amicable. It was just a normal breakup. It just ran its course."

Knight, 36, is believed to have met 20-year-old Cornelson at a gala in Los Angeles.

He has yet to comment on the reports.