I have a friend... Actually we're both a kpopper... She's always with me, she always take good care of me, she calls me whenever Im not around, she consider me one of her true friend but I noticed as time goes by, she has this habit that all-music that i have in my phone she would ask me to send it to her. She will take time for that. Of course Im not THAT selfish but I should be the one operating my phone but sad thing is she was the one who operates it. AND SHE WANTS ALL MY SONGS! GOSH I'VE BEEN DOWNLOADING IT FOR HOURS GUYS. 

One time, she was using my phone, she took selca and took us a picture then I was shock she was on my music gallery. So she didn't ask permission from me. I was distracted and i felt insulted. I have no choice, I don't want her to think of me im a selfish kind of person. You'll know this feeling if you truly care for your property but I need advice what should I do in order for me tell her properly or do something.

I need some advice on what should I do? THANKS! ^^