i dont think it means anything but as for the girl you probably have seen her before but your conscious mind doesnt remember but your subconscious mind does and it put her in your dream... Cause most dreams come from the subconscious
Simple - it's your subconscious mind telling you that you WANT to meet her in person, and that, perhaps, you feel like she wants to meet you, too! The two of you might want to discuss the possibility of this happening. Obviously, your "heart" is trying to tell you something, and it's the risks we don't take that we regret. If you do meet in person, just be sure to do it the smart, safe way - in public. Good luck!