i think (as simple as it sounds) the best way to look at this situation is to see how it unfolds... yeah, i know it's not easy- but try thinking of it like this:
you can only try your best talking to her... if she's not interested, or bored, then it's not your fault... you're doing what you can

from last night though, it does sound like she really enjoyed talking to you too

the key is (or i've found anyway) is if someone's trying to avoid you or getting bored, they take a long time to reply- reply with short, boring messages, or totally change the subject on their next message.

i hope you 2 can become friends.. and even if not, it's really not the end of the world

good luck to you