Question: what season does george die on grey's anatomy

title: George O'Malley
text: Knight felt a parallel to George in that his `` confidence is n't always at its absolute highest '' , but overall he sees more differences than similarities . However , when the actor starts to think he is so different from O'Malley , an awkward move can suggest otherwise . `` I was walking , doing a scene with Katherine Heigl . I finished my line with her , and then I walked straight into the light stand . '' Critical of her affair with O'Malley , Knight 's co-star Heigl explained : `` They really hurt somebody , and they did n't seem to be taking a lot of responsibility for it . I have a really hard time with that kind of thing . I 'm maybe a little too black and white about it . '' Speaking of O'Malley's relationship with Lexie , Rhimes offered her insight : `` I love them as friends . They make good friends . We all have that friend we met in school or the gym or somewhere -- we just hit it off right away . And right away there was no pretense or airs . Just pure honesty . That 's Lexie and George . They 're really good friends and I can see the friendship evolving into something even greater . '' When asked what his `` favorite George moment '' was , Knight said his relationships with Stevens and Bailey .