This dream may reflect feelings of jealousy and insecurity in your waking life. Seeing your ex-girlfriend with a new partner may symbolize feelings of loss and fear of being replaced. Your actions of snooping and throwing the condoms may represent a desire to sabotage their relationship or prove your worth to your ex. The fact that you were able to physically overpower the new girlfriend may suggest a sense of superiority or dominance in the situation. However, the arrival of your ex may indicate a need for closure or resolution in the relationship. This dream may be a reflection of your subconscious processing these emotions and highlighting the need to address them in your waking life. It may also be a reminder to let go of the past and focus on your own growth and happiness.