有一种寂寞叫强颜欢笑
[yŏu yī zhŏng jì mò jiào qiáng yán huān xiào]
This name reflects a situation where someone feels deep loneliness inside but still manages to smile and pretend they are fine. The phrase expresses the internal struggle between one's feelings and outward appearances, which is often used to hide pain or distress from others.