help!

Im so sorry to hear about that. but dont worry, im sure they have a loggical excuse for this.
Firstly, although im sure your nice and would never dream of hurting someone, have you upset or did something which might of hurt them? if not, which is probible, if your not comfortable enough to ask whats up between them to their face, why not drop them a text, email or letter? which is neither rude nor scarcasitc, clear but with emotional dept...they might take a while to reply, so in the mean time hang out with some different friends untill this has blown over.

Good luck! :)