Over a year ago, I started a relationship with a girl who is in my class. We broke up two days before new years eve. We talked a bit afterwards about the current situation and so on, but over all, I have not said much to her. It is affecting everyone, it seems. Everyone tends to get angry from time to time, and it seems like it started off with me and her breaking up... She has over the last few months become VERY bitter and negative and annoying and I don't know what to do. I have to see her every day for another year and a half. Is it possible for me to fix this situation and make things better for everyone?