first of all sorry for the things i'm going to say,, if its going to hurt you,,, accept the fact and you are not a Krishna devotee you are a devotee of that girl. how Krishna can release you if you yourself don't want to get free from this cage as she is not replying you so so what you want now? ,, you want Krishna to come and tell you the fact, it really doesn't matter how much you are chanting because Krishna himself can't help unless you want to help your self .
Krishna don't require the proper method or any other formality of chanting he just need love and how one person can love you if you don't love him.
if you love Krishna only then You deserve Krishna love, its really hard for me to make you understand about the things because me too is still trying to love Krishna but its really very hard to love him with clear mind and open heart, Stop crying as You cannot change your fate so stop thinking about it, Try to love Krishna not to solve your problems but to get his love.