让我心动的人必定让我心痛
[ràng wŏ xīn dòng de rén bì dìng ràng wŏ xīn tòng]
It reflects a view that people causing one’s heart to flutter in romance ultimately are often the cause of heartbreak as well. It speaks of past experiences where deep emotional investments have led to disappointment, suggesting caution, pessimism, or realism towards romance.