你不会再遇见第二个我我不会再遇见第二个你
[nĭ bù huì zài yù jiàn dì èr gè wŏ wŏ bù huì zài yù jiàn dì èr gè nĭ]
This name conveys the sentiment of irreplaceability. It implies that no one else can truly replace the uniqueness of this relationship or the person being addressed. It expresses a deep, mutual exclusivity in connection.