来世对你不弃不离今生与你十指相扣
[lái shì duì nĭ bù qì bù lí jīn shēng yŭ nĭ shí zhĭ xiāng kòu]
This nickname reflects a deep vow of commitment and love. It means 'In the next life, I will stay with you and never leave you. In this life, I want to hold your hand closely'.