OP here again, I hit a nearby coffee shop with her after our class today and actually got her number! The way it happened was a little odd though.

Basically we went and chatted, left with our drinks and talked some more. When we were about to head our separate ways I asked for her number, but she was sort of hesitant. After a moment she made up her mind and gave it to me, mentioning it'd be good for when she needs help with the theory class and whatnot.

The whole deal up till this point was going pretty well I think, so I'm a bit confused by the sudden hesitancy. Should I keep on this or is that a sign that she doesn't want that much to do with me?