喜欢是初见之欢讨厌是久经之痛
[xĭ huān shì chū jiàn zhī huān tăo yàn shì jiŭ jīng zhī tòng]
Describes that liking someone starts with the joy of first meeting but hating can result from deepened, prolonged interactions turning bitter over time. Expresses bittersweet relationship experiences.