The only people who will tell you to call right away are women, and well to be blunt, you shouldn't be listening to them. They don't have to deal with women and have no experience trying to date them. For romantic questions, sure, listen to the girl's advice... for interpreting their actions, sure, listen to the girl's advice... for getting them to like you, LISTEN TO PLAN9's ADVICE (and also the majority of the advice from the men on this board who have first hand experience on what works and what doesn't)!
On that note, i'd like to hear an update on what has happened since she ditched you. (sigh, i still can't believe you went out with her so soon
)