Am I a toy??? changing friend each part of our life..

Sometime, I really feel strange that how come people can be so...... I know that one kind of rice can feed different kind of people.. How come i feel like i am toy? when you need me then you find me, else just dissapeared? I know that we cant be together for the entire life, each stage we will meet different kind of friend or people. When primary school, we will have friends, secondary school we will have new friends and in university we will also have new friends, when we work we will have new friends again. We are like acting different kind of movie, every part of our life. Somehow, I really hope that our friendship can last for long. Im quite lucky person because of each stage i hv true friend which till now we still care for each other although we didnt meet up. This relationship cant use money to buy, how we treat people and what we will get in the end is worth. We keep each other in heart and I really miss you all so much. As for people that not worth to do, we just have to choose to let go. So that, our life can move on and will be better.