梁上伯不能没有祝英台祝英台不能没有梁上伯
[liáng shàng bó bù néng méi yŏu zhù yīng tái zhù yīng tái bù néng méi yŏu liáng shàng bó]
A famous Chinese tragic love story, Liang Shanbo (梁上伯, actually Liang Shanbo) and Zhu Yingtai (祝英台) are two lovers from classical folklore who tragically die and are later transformed into butterflies. This name emphasizes their eternal connection and devotion to each other. Here the username reflects this undying love and mutual indispensability.