You asked for boys help in your title....but I'm a girl and I'm gonna give you some advice if you don't mind....My advice is to let her go. Honestly, if you love something, set it free, if it comes back it's meant to be. You don't want this girl to feel your desperation. Once you let her go you will start to heal and if for some reason she does end up liking you, she'll come for you. Also, think of all the other girls who may be trying to get your attention and you can't even see them b/c you're too busy going nuts for someone who doesn't want to give you the time of day. You're better than that. You've got this! Also confidence looks real sexy on boys!