Relationship Details

Celebrity Biographies

T. R. Knight dated Mark Cornelsen in the past, but they broke up in October, 2009. T. R. Knight dated Mark Cornelsen for 1.7 years. T. R. Knight is currently available.

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T. R. Knight

Entertainment - Actor

Why Famous: Dr. George O'Malley on Grey's Anatomy

Age: 45 (b. 3/26/1973)

T. R. Knight Photos (5)

T. R. Knight's Relationships (3)

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Mark Cornelsen

Other - Other

Why Famous: Boyfriend of T.R. Knight

Age: 30 (b. 1988)


Mark Cornelsen's Relationships (1)

Relationship Timeline

Event Start Date Length
Dating 1/2008 1.7 years
Broke Up 10/2009 --
 Total1.7 years

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Relationship Information, Quotes, and Trivia

Where and/or how did T. R. Knight and Mark Cornelsen meet?

They first crossed paths in October 2007 at a star-studded awards event the Matthew Shepard Foundation hosted in Los Angeles.

Why did T. R. Knight and Mark Cornelsen break up?

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Other Relationship Information about T. R. Knight and Mark Cornelsen:

T.R. acted as a presenter at the Matthew Shepard Foundation even in October 2007 and he was immediately drawn to Mark, who was singled out as a scholar at the event. Although there was some chemistry, T.R. was seeing someone else and he didn't want to jump into a new relationship. After T.R.'s last relationship fizzled began dating Mark.

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Classic Quotes by T. R. Knight and Mark Cornelsen about their relationship:

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