为什么你那么喜欢笑因为没人会陪我哭啊
[wéi shén me nĭ nèi me xĭ huān xiào yīn wéi méi rén huì péi wŏ kū a]
In English it says, 'Why Are You Smiling So Much Because No One Is Here To Cry With Me?' A bittersweet sentiment. On the outside they seem always joyful, while hiding deeper emotions within, needing someone to understand and sympathize with their hidden sadness or struggles, and sharing in those moments.