谁在爱里下了毒谁在我世界埋伏
[shéi zài ài lĭ xià le dú shéi zài wŏ shì jiè mái fú]
This nickname translates to 'Who has poisoned love and laid an ambush in my world?' It conveys a feeling of betrayal and suspicion within a romantic relationship, suggesting that someone's love may be harmful or deceptive.