Goldman develops this story to be mainly about true love and its power to bring people together. If Buttercup had never known Westley before, this theme would not be as prevalent. It would also take longer for Goldman to develop Buttercup and Westley's relationship. When Westley leaves and Buttercup believes that he dies, she is destroyed. This part of the story is very important in developing Buttercup's side of the relationship. If this had never happened, she would not feel these strong emotions when she meets him after being saved from her kidnappers.