She's Not Answering My Emails Texts or Calls

I met her a year ago and we met at her school cafeteria and talked a lot and I walked her to her dorm and left. We exchanged emails about plans but she left the country for a while. About a month ago I received a random text from her and all of a sudden we texted each other and made plans for a meeting at her place.

I met her at her apartment and we walked around and stopped by a restaurant for a drink. She paid for the drinks I know that was a no no but she remember things I talked about from our first meeting and we talked about family and life. I also talked with her about sexual intercourse and she answered my question.

After the drink we walked to her apartment and she said we should hang out again and I am confused and have sent her an email and a couple texts. I am giving her space because she works a lot and does not like obsessive people.

I told her I will wait but I'm not sure if she wants me as a lover a friend or if she is moving away from me because I am being ignored by her and I do not like being ignored but I think she's doing it for her own personal reasons.

Somebody please give some insight , observations, intuitive thought or helpful advice about my situation with her. Please and thanks.