Through the Looking Glass Rewatch: Jack isn’t supposed to leave the island
I finished watching the Season 3 DVD set today. (Aww, Charlie!) I had a realization about Jack.
Jack tells Kate, in the flash forward, that they weren’t supposed to get off the island, that they have to go back. Kate disagreed, and she drove away.
Jack was wrong.
Kate was supposed to get off the island. She’s not supposed to go back. She found her salvation off the island. She has someone to go home to. She’s stopped running.
Jack, on the other hand - the island was his salvation. That’s why he has to go back.

