There is this one person in everyone's life whom you love but do not get the same in return. You keep on loving that one person so much that you even ignore the harsh behavior he sometimes have for you. It's because you have the hope that may be someday he will be able to reciprocate the same love for you.
To hope for this love is fruitful only when you that person loves you the same way you do. And there may be no hopes at all when you know that you will not get back any love in return. Problem arises in hoping endlessly, that some day you will get more or even the same affection from that one person, and everything will be perfect.
That one person may exercise control on your life even more than yourself. He may not even shatter your ego, but will also make you lose your self respect. But, you will give up all for him happily.
It is not the case that there aren't people to shower affection upon you. You are loved by many and you love them all, but there is always a void in your heart for love from that one person. It is something like that someone is ready to offer you, his one million dollars, but you ignore it and all you want is one penny from that one person.
You keep on hoping, crying deep in your heart yelling for the little love you need.