I don't know exactly what the question is. You asked about a girl?
But since no one else has replied, and since I know how frustrating it is to not get your asks answered, I will. I am sure my answer won't be as some of the other astrologers on this site, but at least it's an answer?
Well to start, the combination of 12th house and 9th house energies in your chart would probably make for a very philosophically-minded individual but then again, I don't agree with modern astrology's habit of equating house with it's ruling sign/planet.
The 12th house is ruled by the sign of Pisces, which you probably know, and is commonly considered to be the house of "self-undoing". It is associated with secrets and all things hidden and subconscious. It is also associated with things such as imprisonment, hospitalization, exile, mental illness and institutionalization. Isolation, basically.
The sun, represents the ego, the self, so it's interesting to be placed in the house of self-undoing. You might be very self-sacrificial, empathetic, egoless. You might have a great ability to put yourself in the shoes of others, you might even lose yourself in other people. You might have a tendency to lose yourself in music, books, movies, and your own (day?) dreams. You might be drawn to spirituality, and possibly even drugs. It's possible that this placement could be indicator of self-destruction. This is a very introverted placement for a Gemini. You're probably a very introverted person, though your isolation may not be a matter of choice. You might of been a victim of persecution, some time in your life. You might have dealt with manipulation, bullying, false friends, prejudice and other things of that nature.
Hopefully someone else could give a better interpretation than I can,