暗恋是一场纯真的闷骚单恋是一场未知的奔忙
[àn liàn shì yī chăng chún zhēn de mèn sāo dān liàn shì yī chăng wèi zhī de bēn máng]
'Secret love is a pure but concealed passion, while one-sided love is a rush into the unknown'. This reflects the complexity of different types of love: the purity of unspoken feelings and the chaos of unilateral affection without return.