Being replaced by another girl
So it is time to move back to college. You are dating a guy who are in love with and your roomate is dating his roomate. All of you are very close. Then an empty space opens up and a new girl comes along. You try to be friendly but suddenly you are on the outside looking in. What do you do?
First of all the people who care about you will never replace you. If your guy suddenly shows intrest in her then he is not the guy for you. Second of all if your friends pay more attention to her instead of you then they are not your friends either. True friends stay by each other's sides no matter what.
Don't show they girl that you do not like her. It may make you upset and they may make you resent her but you hating her, isn't going to change anything. By you hating her it is only going to make them go against you even more.
At the end of day you know who your true friends are. Talk to the people you care about and tell them how you feel. If they don't listen to you then maybe you should start looking for other friends.