Neither Belle nor the villagers were being perfect people to each other. Remember in the original story Beauty's father loses all his money and the family has to make a sudden move to the country. They didn't dwell on that part in the Disney version but it was in one of the storyboarding ventures early on. Belle's accustomed to better, clearly has more education and a different outlook. She's a freak to the village and they're rather tiresome to her. Everyone was at least passing polite all the same and she did have a few growing friendly connections, such as bookshop guy. It's just a little culture shock on both sides that might have eventually smoothed over as such things do if she hadn't run off to her adventure in the great wide somewhere.