本宫不死你永远是侧妃
[bĕn gōng bù sĭ nĭ yŏng yuăn shì cè fēi]
Drawn from the context of historical dramas, this phrase uses imperial titles to express competitiveness or conflict in a relationship setting, metaphorically stating that as long as 'this palace (speaker)' exists, you can never be the principal queen, only a secondary consort.