众人心欢讨人心酸
[zhòng rén xīn huān tăo rén xīn suān]
This phrase highlights the stark contrast of personal emotion. It reflects the complex feelings of envy or bitterness inside - while the mass seems happy (possibly due to success/wealth/social acceptance enjoyed by those surrounding), oneself feels left out with only loneliness or sorrow remaining, possibly also hinting at the inner struggle against material desires in society.