难不难过都是一个人过伤不伤心都没有人关心
[nán bù nán guò dōu shì yī gè rén guò shāng bù shāng xīn dōu méi yŏu rén guān xīn]
Expresses loneliness and indifference from others. Even when one feels difficult or sad, it's just oneself dealing with it; no matter if it hurts or not, there is no one caring about the situation of the individual.