skyofblue,

You take for granted that women's sexuality is the same as men's.  While she is flirting, she is trying to see if he is someone she wants to get involved with (to risk pregnancy with, as the case was back then) to marry, someone she might be willing to spend the rest of her life with. What is his family like, Does she want to marry into it?  What kind of a life would she have? A lot of this might be subconsciously done, but it probably was in the minds of many young women not to give in until she was more certain, yet not to allow him to give up completely. So, she is not simply afraid of what others might think. She is, if she knew anything at all, concerned about her future.

The man, however, might well have simply been trying to get laid.  Not to rape, but to have sex.