That is so unfair that you have to go through that. It seems like you all entered nursing school right out of high school but some still have the high school mentality. It makes you wonder why some people have the audacity to go to nursing school with rotten attitudes.
Rotten attitudes = rotten nurses
Unfortunately your situation has required that you quickly develop a thick skin. Meaning, when you get negative vibes coming from those childish people, don't ask them if they're mad at you. Don't be worrying about them talking about you. You put your head up and keep on going. Act like they are not in the classroom. Do what you have to do in school and go about your business. You don't have to fit in with the crowd to get through school. As long as your goal is to be the best nurse that you can be than you don't need to worry about what the others are doing. Right about now to get through school, you need to surround yourself with positivity and if you don't feel that than you need to find some other people in your class to connect to or stay to yourself.
Running away is not the answer. Going to another school will not prevent this from happening again. It will show that they have power over you. What are going to do when you find this behavior where you work? It happens all the time. There are petty people wherever you go and you have to learn that you are worthy of being respected and that you don't have to take crap from no one. They are going to get to you if you keep worrying about whether or not they like you.
Look at this as a learning experience for when you become an RN and have to experience the drama at your job. There are toxic environments wherever you go so take this time to work on developing a thick skin and not letting them haters get to you.