UPDATE: To anyone that originally posted, figured I'd come back around and talk about the aftermath of the situation. Nothing happened at all. I just cut off all contact with her cold turkey. I didn't unfriend her on FB (didn't wanna come off as immature or anything), and that's that. Silence. No text, No call, not even saying hi/acknowledging each other when we randomly bumped into each other on campus.
I did hit her up the other day for closure purposes but then I stopped. What good is it gonna do me to have her admit "yes I was just stringing you along." She wasn't worth the time, energy, or mental effort. Glad the store took back the item I purchased for her birthday as a gift (I threw out the receipt).
Out of complete curiosity, why would she do this to me? Maybe I'm just naive, but I'd never hurt a fly let alone a person by leading them on thinking I have feelings for them/are interested in a relationship beyond friendship when I'm truly not. That's just cold-hearted if you ask me. I've seen it on TV shows and stuff, but never assumed I'd be a victim of it one day