Love sometimes means letting go.  You can let her know how you feel, but after you have made it clear, if she is not interested then it is best for you to seek other interests.  Love as a one way street is not fulfilling to either party.

Perhaps it is time for you both to move on.  If it isn't, then you will naturally come together as you both seek ways to grow.  Sometimes people separate for a time and find that they both do want to reunite.  Sometimes they don't.  But, I think if it is meant to be, even breaks from one another will not keep you apart.

There is nothing anyone can do to make someone love them.  It seems a person either loves us or they don't.  But as you grow strong in yourself, you will find that you attract more love to you, because you are not blocking it with worry. 

Remain open to the possibility that even better things await you if this does not work out.

Sometimes too, a person can care deeply about us, even love us, but they have another path they must take.  It isn't really a judgement about either party, just that life is pulling you in different directions.