Bro, i can understand how it feels and just like you said all this is not true love and also buay kum wan investing in so much time etc.. Bro all you need now is to calm down and look for some friends to hang out with, dun think of her and slowly once you forget her you will find yourself very stupid for all this emotion. She is out to play you and you still fall for it then she gets even more cocky knowing you being vex. Trust me bro you will get over it in no time but if you need other kind of help then maybe i can help solve your problem. PM me if yo interested. Meanwhile just takecare bro.