In Casino Royale (2006), we know Vesper worked for Le Chiffre, so she needs 007 to lose and Le Chiffre to win the tournament. Le Chiffre decides to poison 007 so he has better odds of winning. But for some reason Vesper goes out of her way to save 007's life. Did she really at that point already fell in love with him? Or are we supposed to think that she is a naive person who hoped that nobody needs to get hurt in order to save her boyfriend?