Does she love me ? I use To treat her as a friend when we we t to school. Now we have graduated and I do not see her.?

When I did go to school with her she was a friend for me. Since that we have graduated, These days I do not see her and .... i just do not understand why I am developing this love for her. 

Is it because she loves me ?

However, when we we went to school,, she hardly responded to my messages. So it did not look like she had any love for me. Even once when she went to usa, I wrote her 3 emails and she gave me no responses. So I never thought she loved me. As a friend I did  love her more than she did.  But she was very trustable.