Also she wanted to leave the island with Jack in that submarine (how did they want to steer it anyway? I mean, honestly, I couldn't "drive" a submarine when I suddenly found one !!!)...so that is the major reason why the other's left HER behind. She doesn't want to stay on that island. But as she knows how she got there, she must know how to get off OR if it is possible or not. Which leads me to the suspicion that she cannot be fully trusted. Ah well... I think she won't dissapoint Jack...because I think she likes him (very) much.
