There is a poem about a poet who separated from a girl and then got married and came back! What poem is it?

It's late in spring, so that spring flowers wither, instead of complaining that flowers bloom too early. The vicissitudes of nature make flowers wither, spring has passed, green leaves are lush, fruits are heavy, and it is almost the harvest season. —— The poem "Sighing Flowers" by Du Mu, a poet in the late Tang Dynasty, is famous for its "disconsolate poems".

There is a legend about this poem: Du Mu traveled to Huzhou and met a teenage folk woman. Du Mu and his mother were married for ten years, and in the last fourteen years, Du Mu began to do Huzhou secretariat. The woman married for three years and gave birth to two sons. Du Mu lamented and pretended to write this poem. This legend may be unreliable, but it is generally certain that this poem expresses the love between men and women by sighing flowers. It shows the poet's melancholy when his romantic life is not satisfactory.