This song, 你不知道的事, sang by 王力宏, is very meaningful.
It really can sing out what i feel for you right now.
Who, Why, What, When, Where & How.
All of them.
Hope you see this, you will understand why i did that to you that time…
Actually, I still do love you…
其实, 我还是得依然的那么爱这你的…