Dreaming about a girl best friend and an old crush can have several interpretations. Here are a few possibilities:

1. Unresolved Feelings: If you have unfinished feelings for your old crush, dreaming about her might indicate that you're still processing those emotions.
2. Connection and Support: Your girl best friend may represent a strong emotional connection or support system in your life. She could symbolize comfort and trust, and her presence in your dreams might reflect your appreciation for that relationship.
3. Desire for Companionship: These dreams could also signify a longing for companionship or romance. Your subconscious might be expressing a desire for more intimacy or connection, whether with them or in general.
4. Reflection of Current Life Events: Think about what's happening in your life currently. Are there situations that remind you of your past feelings or friendships? Your dream may be a reflection of your current emotional state or experiences.

Consider how you feel during these dreams and any recurring themes or emotions. This can offer additional insights into what your subconscious mind is trying to communicate.