Before you grow up you must fall in love 3 times.
Once you must fall in love with your best friend. This will likely ruin the friendship forever, but will teach you who your true friends are and grant you an understanding of that fine line between friendship and more.
Once you must fall in love with someone you believe to be perfect so that you may learn no one is perfect and that no one should ever treat you as any less than you deserve.
And once you must fall in love with someone exactly like you. This will teach you about who you are and who you want to be. Above all, through each of these loves you will learn that love is only a concept that can not be defined. Always love anyway.