Asexuality, I need advice for a friend.

I may or may not have been asexual for four years, when I told my teacher she introduced me to a girl who had said the same thing and we became friends. During ninth grade I began to grow out of it and away from the girl. I stared dating boys and girls and was attracted to them. I have just begun talking to the girl again she asked me how to be normal and start to be attracted to people. She says she has talked to her other friends and they didn’t understand. So, she came to me asking and I really don’t know what to say to her because it just came naturally to me. Any Advice?