boys?

are all boys the same i mean i have my fareshare of boys and they all are the same go out talk hug breakup is it me or are all guys like this i need help and i want to know if this is all to boys is playing with a girls emotions i mean like they make you happy them mad then happy and out of know were breakup with you and your left wondreing what you did? i just dont understand what am i soposed to do to keep a boyfriend i just need help on whaat to do to get it all righ and to know not all boys are the same!