深情太深会致命信你太真会伤心
[shēn qíng tài shēn huì zhì mìng xìn nĭ tài zhēn huì shāng xīn]
It roughly means 'falling too deeply in love could be fatal and trusting you wholeheartedly breaks my heart'. Expresses the idea of being too emotionally vulnerable, particularly when faced with potential deception.