George died after getting hit by a bus during the Season 5 finale before he was about to join the Army. He stepped in front of the bus to save someone else’s life.

Why did Greys kill off George?

George was killed off after being hit by a bus in a bid to save a woman’s life. (Washington, who was fired in season three after calling Knight a homophobic slur, made a surprise return in season 10 as part of Sandra Oh’s departure.)

Did Mark Sloan actually die?

How did Mark Sloan die? In the Season 8 finale, everyone was involved in a plane crash. Soon, viewers found out that Lexie Grey was crushed by a piece of debris with Sloan trying to save her. Finally, the team at the hospital “pulled the plug” to end his suffering, and he died in season 9.

After 17 days of avoiding her he decided he wantedto be with her so told Callie about the affair. She misunderstood and forgave him and took him back but the situation was cleared up and they decided to divorce. After the divorce they remained friends.