It took awhile for Alex's group to get out of the encirclement of Emily's fans. Even the school's disciplinary committee needed to step in, as the start of class was getting closer, and a lot of the fans were blocking the path to the entrance of the school. There were even some from outside of the school that started to surround Emily.
So with the help of some teachers, and the members of the disciplinary committee they were able to disperse Emily's fans. Some of the girls who saw how popular Emily was wanted to lash out at her, and demean Emily. Yet they just couldn't do it, not only was Emily part of the Mercenary Club, which was full of influential students, she was also friends with the student council president the most powerful student in this school. If you even count her family background she was even more powerful than the principal himself.