感谢你赠我一场空欢喜
[găn xiè nĭ zèng wŏ yī chăng kōng huān xĭ]
It means 'Thanks for giving me an illusion that turned out to be nothing.' It's a way of expressing the bitterness and irony of having false hopes in life, especially after some disappointing experiences like a breakup. Users choose this nickname perhaps as they hope others will know their experience.