She's probably considering all the candidates for the position and will choose the successful one after evaluating a large enough sample of the eligible applicants. Being too keen is a killer, and continually texting and leaving messages will make you look really sad and needy : Like Morticia said, you've already shown yourself to be a complete pushover, and no girl will respect a doormat.
Get a ****ing grip and start looking elsewhere yourself, two dates is hardly a relationship is it?