One should try to work out their differences with classmates.
John is just starting his first year of college and had a disagreement with a classmate.
John wants to put the disagreement in the past.
John approaches the classmate the following day and openly listens to their point view until they reach a mutual apology.
John just ignores the issue and the classmate he had the issue with going forward.
John and the classmate become great friends over the course of John's college years and John makes lifelong memories.
John develops a reputation that causes people to avoid him and makes his college experience lonely and unpleasant.