In college life, communication in student dormitories is very important. If you are suddenly isolated by your roommate or other roommates, you can take the following measures:

1. Self-reflection: First of all, you should calm down and think carefully about whether you did anything wrong or got into any trouble, which led to being avoided by your roommate. If there is a mistake, take the initiative to apologize to your roommate and explain that it won't happen again.

2. Talk to everyone: Take the initiative to talk to your roommates or other students in the dormitory to find out why they want to isolate you. If there are some misunderstandings or minor contradictions, they can be solved through conversation.

3. Follow-up socialization: actively participate in dormitory or school public activities, communicate with freshmen, increase their social circle and reduce their dependence on roommates.

4. Ask teachers and counselors, such as class teachers and undergraduate counselors, who have enough experience and channels to help you analyze the situation and solve problems.

5. Adjust yourself: If you really can't find the reason and there are no factors behind you that you don't know, you can adjust your personality and some behaviors appropriately and try to cooperate with others.

It is really uncomfortable to be isolated by roommates, but as long as you actively communicate and adjust, the situation is still possible. First of all, we must maintain positive energy and believe that the problem can be solved.