鱼哭了海心疼你哭了我难受
[yú kū le hăi xīn téng nĭ kū le wŏ nán shòu]
Translating as 'When the Fish Cries, the Sea Feels Pain; When You Cry, I Feel Uneasy,' this nickname conveys deep empathy between two individuals. It shows how deeply one can be affected by someone else's emotions.