Sun: What do you think happened to Jack while he was with the Others? Since he's been back, he seems different.
Kate: He says that he was pretty much a prisoner and the only reason why he cooperated was 'cause he thought they'd let him off the island.
Sun: Do you believe him?
Kate: Why wouldn't I?
Sun: He came to me, asking about my pregnancy.
Kate: Well, what would that have anything to do with ...
Sun: What if - what if the Others want my baby? He's been there alone for over a week. How do we know he isn't working with them?
Kate: He's not working with them.