She seems sad I'm going away, then mad I don't text her, but just wants to be friends?

ouch.. i think she might still b in shock or was... at least u were honest with her n she did seem to let on she liked you.. as a girl i kinda get her perspective although its not all that fair of her to do that. she probably saw "if u want more, i can give you that to" n interpreted it as a hey i want to sleep with you. opposed to whatever u truly meant. usually when a guy texts me with something along those lines n a wink face (this might just b me) i interpret it as a ual invite. if she n i think the same way she probably jumped the gun and felt betrayed. i don't believe either of you are in the wrong(aside from the facebook post) i think it was cutting communication and not clearing up what the true intentions were