对你的爱越深我心越痛
[duì nĭ de ài yuè shēn wŏ xīn yuè tòng]
This means 'The deeper my love for you, the more pain I feel.' It expresses a complex emotion where love and pain coexist. The deeper one falls in love with someone, the more emotional suffering they endure, often due to unreciprocated feelings or difficult circumstances in the relationship.