Need some help here?

[unknown]

Ok, so, about a month ago this girl started quickly glancing up at me and back down. She eventually got closer and closer, and started to tease me a bit.

Before I knew it I liked her.

She then proceeded to get closer and closer, looking up more frequently and then she added me on facebook. We had a few conversations and they went really well, I made her laugh and you know the rest.

My friend who knows I like her then told her I did on facebook, so she messaged me saying "sorry i like someone else". By this I thought it was over.

But now she is still glancing and smiling at me, trying to get close whenever she can.

What's going on?
It's like a nice glance though, not a death one