If you dream of former classmates (from years gone by), this suggests that you need to draw on your old associations with your former classmates to gain insight in some current relationship. You learned a lesson from your relationships with the person or people you were dreaming about, and that lesson can help you in some aspect of your life now. So look to the people you dreamed of, and the experiences you had with them, for clues to how to act in a current situation or relationship.