I think she is falling for me, what should i do.

This is a story about a friend i met in coaching. I was just a simple person with not so many friends, It all started when i wanted some notes, so i asked the teacher about it and at first she gave me some student's notes, when i asked for another topic notes she gave me the contact of a girl. At first we exchanged some notes, just some talks and everything. But as time gone by she started getting affectionate about me Now at this point i think she likes me but can't tell because of family, what should i do?