Why is it...?

It strange how seeing someone can make u so happy but at the same time make u cry, or how just looking at them u see your world in their eyes, it weird how u have the best of intentions but things still turn out so wrong,because u lost the one u were waiting 4 all along, its amazing how u love someone w/all your heart and u just let them walk out of your life not knowing how much u care, or how when u see him u hold Back your tears because u still want him in your life.