你不要假装开心那样我会很伤心
[nĭ bù yào jiă zhuāng kāi xīn nèi yàng wŏ huì hĕn shāng xīn]
Translating to 'Don't pretend to be happy, it makes me sad'. This shows a person who is sensitive and concerned about genuine emotions, wanting authentic interactions and rejecting feigned happiness.