Dreams involving conflict, especially in relationships, often reflect underlying feelings of insecurity, jealousy, or fear of betrayal. In your dream, the girl represents a perceived threat to your relationship, and your partner's flirtation could symbolize feelings of inadequacy or fear of losing him. The fight in the dream may illustrate your desire to assert yourself and protect your emotional space.

Consider reflecting on your current feelings within your relationship. Are there any insecurities or concerns that you need to address? It might be helpful to communicate openly with your partner about your feelings to strengthen your bond and alleviate any anxieties you may have. Remember, dreams can serve as a way to process our emotions, and understanding them can lead to personal growth.