我的闺蜜在我的男人怀里
[wŏ de guī mì zài wŏ de nán rén huái lĭ]
This nickname implies a complicated or even controversial relationship where a close female friend (often translated as 'best girlfriend' in Chinese culture) is involved with the man of the speaker. The meaning could be that her close friend betrayed her trust, indicating a sad or frustrating personal relationship experience.