So, I'm in this situation. I have a co-worker which has the same subjects as I do this semester in college. I haven't many good opportunities to talk to her at work, but one day we were talking about it, she said she was facing some difficulties at some subjects (she's a fresher while I'm repeating those subjects), so I said something like "Hum, ok. We should go to the library one day, I also have to start digging it". And she promptly said (for me in a convincing tone, I think) "That's fine! We then arrange for it" (at this point there were clients coming, so it was time to go). I should have #-closed on the spot, I know...
Then, when we met up again at work, I asked "Hey, do you want to go to the lib one of these days?", and she said "Yes I do! But mind this week I'm gonna be busy studying "whatever" for the exam on Wednesday". (I'm not having that subject)
Me: "Ok, ok, I'll let you know". And I asked her number. As I was exiting the service, it was time to go.
That was last Sunday, so on Wednesday (I didn't go to college the days before) I texted her like "Hey XX! It's me blablabla

... Are you by the campus? Do you accept a coffee?", and she replied "Hey sorry, I'm at home, blablabla...". I accepted, as she was studying for the exam in the afternoon, and kept the convo for a bit.
Friday I texted again saying "Hey YY (I played with her name), I'm going to the lib tomorrow? Are you coming?" to what she replied "Don't call me YY

Tomorrow I can't because of my "whatever" class (a technician degree she's taking)." (That, I didn't know of)
We kept the convo playfully for a bit even though she was obviously flaking. I mean, a class shouldn't take the whole day, even if she starts working by the beginning of the evening there would still be some time. Although as it's a technical course with classes on the weekend, it's possible, IDK...
What should I do? Should I keep trying to get her to the lib? Should I text her something completely out of the work/study frame?
She seemed interested in going to the lib, but she's not making any effort to arrange something. Am I to expect that she would come up with something?
Sorry for the long post!