至死方休俄只守护你歇斯底里俄只陪着你
[zhì sĭ fāng xiū é zhĭ shŏu hù nĭ xiē sī dĭ lĭ é zhĭ péi zhe nĭ]
Loosely translated to: 'Do not stop until death - I will protect you fanatically / Do not stop until death - I'll accompany you frenetically', indicates extreme passion, madness and devotion towards the loved one. These nicknames seem to emphasize commitment and persistence in emotions.