It sounds like your roommate is friendly, even if your suitemates are not. You could try getting closer to her. The main thing though is to find some clubs, organizations and activities to get involved with on and off campus that reflect your interests, so you can meet people with similar interests to become friends with. This will take some time, but it is the way to find the smaller groups of people to see regularly enough for friendships to form. If the suitemates continue this behavior, it might be worth looking into ways to switch to different housing when possible, because it is no fun to feel uncomfortable in your own living space. In the meantime, stay positive and confident and most of all patient as you build your life and find your people.