不幸福就一起死
[bù xìng fú jiù yī qĭ sĭ]
The literal meaning of this nickname 'If Not Happy, Let's Die Together' may seem rather intense or dramatic. This sort of extreme statement is typically used for emphasizing the depth of one's feelings towards another person. It implies an all-or-nothing kind of devotion and willingness to undergo everything including adversities together with someone. In context, people use it more likely as hyperbole to convey deep attachment or despair over romantic situations.