A situation!

[ColonyConfused]

It's been more than 3 months since my break up with my ex, and about 3 weeks ago i met this girl, in a small party in my home, she is a classmate of my roommate's. So that night we talked a lot and we found each other very fun to talk to, so we exchanged facebook names. the day after i waited until she added me on facebook, and i still didn't accept until the next night, so we talked a bit on facebook until she just suddenly stopped replying, a few days later i met her again when she came home with my roommate to have lunch with him (my roommate is trying to help form this relationship, so we would meet again and talk more), after saying hi she says she's very sorry she didn't reply to my message on facebook because she is super busy these days and don't check facebook, i said its fine and we again started talking a bit, but that day i had an exam in the evening so i wasn't in the mood at all.. well i'd say it didn't go well.
A week later we met again in another party, i got to the party a bit late so i called my friend to come down and take me to the party, but the thing is that she came with him too, so we went to the party but didn't spend much time together since she was sitting in a very crowded part, and i was speaking with other girls in another part of the hall. So anyway, 5 days later i asked her on facebook to spend the weekend together with some coffee and guitar, and if she brings her guitar we can get back to my place (which i was alone this weekend) and play guitar together. i obviously had some plans. So she replies with "yes sure, i think it's a good idea.. " and some other things, then i ask her for her phone number to call her later and inform her of the place to meet. but no reply, so now the weekend has passed, and no reply from her, i know that she has a lot of homework because she is the classmate of my roommate, he told me she is so busy. but i believe there is always time for some coffee.
so now.. 3 days has passed since that message and she still has not replied, i was thinking to choose between doing one of these two things:
1- forget about it completely and not send her any messages again,
2- message her in a way like this "hello?".. or just remind her that she did a very impolite thing by not replying to my message and actually ruining my plans for the weekend.

In the end i don't feel attracted to her anymore, i just want to let her know somehow that what she did was not right, because i asked her out in a friendly manner.

What do you guys thing?.. should i send her a message or just forget her. (there is a chance i will meet her again sometime)

 

[ColonyConfused]

I agree, but she has a very complicated behaviour, when we are together she seems very interested, starts conversations and everything, but it's only her cyber personality that doesn't show attention or is just different. i dont know.. i was thinking to just let her know that what she did was not nice, i'm going to move on anyway, there was never anything between us anyway.
I really thinkg that the Number 2 could be good.. you know, just to say "hello?" as in "anybody out there?".. and when she replies, and obviously she says ohh i'm sorry i forgot... and the bull$hits, and that we can go out next week, then i will reply with i'm sorry that was my only free day since i have 2 more exams to take care of.
what do you think?..