Pretty much have a girl in my economics course who had three dates with, fucked on second but now have been flaked on twice in a few days. Yesterday was meant to get lunch with her but was messaged 2 hours before saying she 'got called in for a lunch shift at work - can we next week?'. I'm unsure as to what's going on as she seemed to be really into me, constantly initiating convo and snapchatting me a ton - still does snap me but has backed off a little. Any tips appreciated.