我爱你原来是你的口头禅
[wŏ ài nĭ yuán lái shì nĭ de kŏu tóu shàn]
Translated as 'I love you turned out to be just your catchphrase', it expresses feelings of disappointment after realizing someone often repeats a saying they do not mean, revealing the speaker’s disillusionment regarding expressions of love.