Your convo with this girl just reeked of wussiness. When she said ''you must not be interested'' you should have said something like ''well its clear you are interested in me so you should do the calling, if you are quick you will get to the top of the list of stalkers'' You are the catch. By her saying other guys call her, who cares. You are not these other guys. You are different hence why you dont call her. If she doesnt call you big deal, there are plenty more girls out there. Stick to your rules, dont change them for anyone. This will bring you most success instead of changing the rules for specific people. Grow a pair dude.