No one collected it after Confucius, or maybe someone collected it but it was lost in history. Another reason is the era. Writing poems was popular in the Han Dynasty, and the entire Central Plains was in a period of melee in the Wei, Jin, Southern and Northern Dynasties. How could anyone be in the mood to collect simple love poems? Even if they existed, most of them were lost in the war. In the Tang Dynasty, poetry was popular, but similar The poems of the Tang Dynasty are all dimmed under the halo of poems about immortals, holy poems, ghost poems, Buddhist poems, bone poems, emperor poems, etc. There should still be a lot of love poems collected in the complete poems of the Tang Dynasty, such as Yuan Zhen's five poems "Li Si"; as for the Song Dynasty , popular lyrics, such as Su Shi's "Ten Years of Life and Death" is one of my favorites, and there are also some good poems circulating; the reasons are mostly similar in the Yuan, Ming and Qing dynasties. The vernacular movement after modern times also produced many modern poems describing love, such as "To the Oak Tree".
From the Warring States Period to the Qin and Han Dynasties, only a few poems from the General Dynasty were circulated. What were popular were history books and books related to the political ideas of various schools of thought. In fact, it is not that poems similar to the Book of Songs have rarely appeared since the Han Dynasty, but that there have been fewer wars since the Han Dynasty, and people's material living standards have greatly improved. Later, there was a cultural explosion, and there were more The style and connotation of poetry also showed a trend of explosion in quantity, covering up the simple love poems. Moreover, later more emphasis was placed on the literary talent and political connotation of poetry, and no one specifically collected love poems. After all, they are "the most unforgettable poems of the ancients" , the most dismissive thing is lovesickness.”
Above.