I don't understand....

I Dont Understand How You Can Smile All Day But Cry Yourself To Sleep. How Pictures Never Change But The People In Them Do. You Can Let Go Of Something You Once Couldn't Live Without. How People Who Once Wanted To Spend Every Second With You, Think A Few Minuets Of There Time Is To Much To Spare. How People Can Erase You From There Life Just Because Its Easier Than To Work It Out....