她是毒戒不掉他是药离不开
[tā shì dú jiè bù diào tā shì yào lí bù kāi]
This sentence, meaning 'She is a poison I can't quit, he is medicine I cannot do without,' vividly contrasts two extreme dependencies in human connections: an unhealthy yet hard-to-relinquish attraction and a supportive dependency that's crucial for well-being. It encapsulates complicated interpersonal dynamics involving desire and need from different entities.