Anon or delete. It's embarassing enough admitting I need help with this anonymously.
Background: I'm in my first year of uni away from home. Around the time I left, I met a girl a year younger than me. We've only really spoken for longer than 5 minutes on 5 or 6 occasions but this has been enough for me to develop a very strong attraction to her. This is either pathetic or some kind of violent natural chemistry. I'll leave it to how empathetic you're feeling to decide. Anyway, I know her wider group of friends all find me attractive, but I don't know that she specifically does. We coincided at a New Years party and spent most of the night together dancing and...I'm not sure what else, though I'm told by reliable sources that nothing intimate happened. I may or may not have drunk an entire bottle of gin and gone and passed out on a couch (I did).
So anyway, I'm back in town the other night after a few months away and I come across her in a club. She's in a pretty large group of friends who I don't know and doesn't see me so I head off back to my own friends. Halfway up the stairs I get tapped on the shoulder and turn around to find her staring at me. "How long have you been back, Why didn't you let me know, etc." (we're friends on social networks but have never communicated through them). She made a huge point of finding out where I was and arranging to meet later on, but never showed. As I was heading out for a smoke I saw her dancing with a male acquaintance I'd already told she was involved in "something" with.
So, if you're still reading and don't actually hate me yet, which of these four is going on:
a.) She just was glad to see a friend after a long pause, you're overthinking massively, chill out
b.) She's into you, but she's also got this thing going on with this other guy who is around all year and doesn't want to jeopardize that without knowing you're equally keen on her
c.) She was drunk and though you were Enrique Iglesias
d.) Other