看到你难过我怎会不心痛看到你哭泣我怎会狠开心
[kàn dào nĭ nán guò wŏ zĕn huì bù xīn tòng kàn dào nĭ kū qì wŏ zĕn huì hĕn kāi xīn]
'How can I not feel pain when I see you sad? How could I be happy seeing you cry?' reflects an intense emotion of sympathy and care. It describes the conflicting emotions when one truly cares about another but sees that person in pain.