This dream may symbolize unresolved feelings and emotions towards your past relationship with your ex-girlfriend. Being back in high school represents a time of growth and development, and your ex-girlfriend and her new boyfriend may represent the idea of moving on and finding happiness without you. The fact that they were always together and you were alone at a different table could symbolize feelings of isolation and being left behind. Your anger towards her new boyfriend may stem from feelings of jealousy and inadequacy, as you feel like you are not measuring up to him. Trying to fit into their group and feeling like you are not good enough may reflect your insecurities and desire to be accepted by your ex-girlfriend. However, when you finally want to confront her and express your feelings, she disappears, indicating that you may feel like you have lost your chance to reconcile with her. This dream may be a reflection of your struggle to move on from your past relationship and the lingering emotions that you have yet to resolve.
