Well, you have to realize she's very young. You said she was a freshman and you were a junior??? Young girls tend to be " young and stupid" I say this because I speak from experience. As I got older and matured, i realized my true feelings towards all of my ex boyfriends and realized they were just crushes. Now I have a serious boyfriend of a year and 10 months which is a relationship that has grown and we're really good friends. But we're about to experience the long distance problem to because he's going to college, but you need to see that if she really loves you and it's not just some crush she'll eventuall open her eyes as she gets older, but it never hurts to talk to her and tell her how she's making you feel. You sound like a really sweet guy and she does need to quit taking advantage of you, thereforeeeeee you need to talk it out with her and find out from her if she feels the same way about you as you do her! I hope i was any help at all!