of course you have to be quiet, if you act like him it may make problems. in other way we have to show others a good face even if their behaviours.

being quiet is definitely not the way.......speak sensibly....if i am in the situation you mentioned....i would distract her with some other topic she love to hear about... Later when she is calm i ll talk about the issue that made her rude.... Mostly girls aren't rude i guess