男男女女演戏而已男男女女演戏而已
[nán nán nǚ nǚ yăn xì ér yĭ nán nán nǚ nǚ yăn xì ér yĭ]
Implies 'men and women are just playing roles', emphasizing the artificiality or insincerity of gender interactions, especially in romantic contexts, repeated for emphasis or frustration.