The dream of walking into your school gym and seeing your girlfriend on your friend’s lap is a manifestation of your deep-seated feelings of jealousy and insecurity in your relationship. The gym, a place of physical activity and competition, symbolizes the dynamics of your relationship with your girlfriend. Your friend’s lap represents a sense of comfort and intimacy, which you feel threatened by. Your reaction of jumping at them and physically attacking them reflects your fear of losing your girlfriend to someone else. The act of cussing out your girlfriend also reveals your anger and frustration towards her for potentially betraying your trust. This dream may be a reflection of your own insecurities and fears in the relationship, causing you to act out in a destructive manner. The intense emotions you felt in the dream, leading to you waking up crying and feeling heartbroken, may be a warning sign to address these issues in your waking life before they cause irreparable damage to your relationship.