Should i stay or should i go?

Why is she losing precious time over trivial things like these? By what you said she doesn't sound like a wise woman to me. If anything she should be trying to win over your parents and show them she truly loves and cares about you. If they are going to be her in-laws for the rest of her life why not start on a good note? She is not ready for marriage, she seems to be very stuborn, immature and proud. She does't care about how this makes you feel. You should reconsider your decision to marry a woman like that. After the initial wedding jitters wear off, you are going to have to deal with more situations like this from her. Until she changes one day this might be the hell of a life you will have to put up with. Right now she is against your parents but later her attitude could be aimed at you. Put off the wedding until you figure out what to do with her. It takes more than external beuty to make a marriage work.