爱上你 是 我的错  可是离 开  又舍不得  听着你为我写的歌     好难过
如果说 我说如果  我们还 能  重新来过   不去计 较 谁对谁错  会怎么做

Murphy's Law :
If there are two or more ways to do something, and one of those ways can result in a catastrophe, then someone will do it.