Because it is always easy for us to meet such unpleasant people in our life. She likes to show that she knows others better than you, just to show her charm, and even let others isolate you and make you feel unimportant. She should behave like this because she hates you or regards you as a competitor. In fact, this kind of behavior is very naive, which shows that she pays attention to communication, but it doesn't necessarily mean that you care, so she is wrong about the key points. But you should want to show that you are not welcome.
This kind of problem may be a contradiction between you, or it may just be that she hates you. Don't pay too much attention to it. Get close to her if you want to ease the relationship, and live your own life if you don't want to. You can make yourself excellent in college, such as preparing for postgraduate entrance examination or textual research. These are all good ways. Of course, if such people can't ease up, stay away, otherwise they will only make themselves unhappy! After all, disgust is hard to change. She may think communication is important, but it's not necessarily what you think. So just stay away from such people.
If you meet such people, try to stay away from them. Because others have some negative energy and are not very mature psychologically, they may want to isolate you. She cares more about popularity and wants you to see that she is not popular, but it is naive. Because she has a lot of negative energy, so try to stay away, otherwise we will often quarrel together in the future, so there is no need to be too close, and you can't learn anything from her. Let's live our own life. It's more comfortable.