To dream of getting a new roommate suggests that a big change in coming into your life.
If you dream about an old roommate, you are reflecting on your past. Perhaps you need to learn a lesson from a past experience. It’s also possible that you are simply missing the person you dreamed about.
If you dream about fighting with your roommate, you may run into unpleasant encounters with social rivals.
If you dream that your roommate moved out without telling you, may suggest your fear of change or being abandoned by people.... My Dream Interpretation