Does this girl like me?

It seems like it. I have to say, though, you seem to be quite articulate (get a dictionary if you didn't understand the word). Anyway, it's going to be awkward if she's supposed to ask you to this dance (unless that wasn't a factor in your supposed relationship). Try talking to her a little more, but in real life. I'm no love therapist, but I'm pretty sure girls don't like it when a guy wants to spend ALL his time talking to her on Facebook. Find time to talk to her, because she'll really like it if you commit to a relationship. It doesn't have to be big; just show her you care. I hope everything works out for you, and I would say just try to ask her, and she if it works out.