A flower, a leaf, a chase, where does a couple's life come from? What poem is this from?

"A couple in a lifetime" comes from Dondero's "The Taoist Queen gives Li Rong". The original poem is very long, and there is a sentence in it: "Two feelings cherish each other and miss each other twice." After (Qing) Nalan Xingde's word "Flower Hall Spring" quoted Luo's poems, which seems to be more famous than Luo. The original text "One generation and two people live their lives, and strive to teach two souls. Acacia does not face each other, who is spring?

Begging from the blue bridge is easy, but rushing into the blue shipwreck. If you allow me to visit Oxford, I will forget my poverty relatively. "

As for what you said, it should be written by modern people for listening, but it is still interesting.