classic waka stream

あしからじとてこそ人のわかれけめ
なにか難波の浦もすみ憂き
Roma-ji

Ashikaraji tote koso hito no wakarekeme nanika Naniwa no ura mo sumiuki

English Translation
It was so that things
should not go badly — so that
there should be no reeds
to cut — that we parted; why
say Naniwa is hard now
Meaning
It was so that things should not go badly — so that there should be no reeds to cut — that we parted. Why say now that Naniwa is hard to live beside?
Commentary
148 The Bay of Naniwa

A husband and wife were living near Naniwa in the province of Tsu. They were not of poor family, but had come down in the world and could no longer live; so the man urged his wife to go up to the capital and enter service, saying that he would set himself to rights and they would meet again. She went, but in her forlornness she thought of him and grieved with "Hitori shite ikani semashi to wabitsureba soyo to mo mae no ogi zo kotauru". In service in the capital her clothes and her circumstances improved, but she had no one close to her and could learn nothing of her husband. In time a nobleman of the capital took notice of her and she became his wife. Still she was anxious about her former husband, and saying she would go to Naniwa for a purification and to see the place, she went there — and even the old house was gone. She could not find him, and could not tell her attendants the truth; they urged her to go home as it was growing dark. While she hesitated, saying only a little longer, a poor man selling reeds passed before the carriage. He resembled her husband, so she said to call the man over, as she wished to buy his reeds; and the attendants, thinking it strange, called him, and it was he. She tried to have him paid far more than the reeds were worth, and the attendants objected. Meanwhile the man recognised her, and in shame at his condition threw down the reeds and fled into a house and huddled behind the hearth. She said to bring him, and the attendants made a commotion searching for him. Finding him and saying that here was a gift for him and what a fool he was, they were dragging him out when he wrote a letter and asked that it be taken to her. They thought it odd, but carried it. Opening it, she read "Kimi nakute ashikarikeri to omou ni mo itodo Naniwa no ura zo sumiuki", and wept aloud for the sorrow of it. What she answered is not known. She sent the gift back with a letter attached, and what became of it afterwards is not known: "Ashikaraji tote koso hito no wakarekeme nanika Naniwa no ura mo sumiuki". That is the whole of the section.
Tsu is Settsu province, and Naniwa a place within it. Neither husband nor wife is named. The last poem is taken to be a later addition.
The setting is the same, after she had read his letter and wept.
What prompted the poem is his, "Kimi nakute ashikarikeri to omou ni mo itodo Naniwa no ura zo sumiuki". She sent the gift back with a letter attached.
What became of it afterwards is not known, the prose says. This poem is taken to be a later addition.

The opening uses the same word as his, meaning both bad and reed, so that going badly and cutting reeds are again one; an emphatic construction governs the verb.
What follows supposes, in the past tense, that this was why they parted: to set matters right.
The word in the fourth line introduces a rhetorical question: why should it be so? It should not.
The closing takes his own last line over whole. They parted so that things should not go badly, and it is strange to complain now that the place is hard to live in. Reusing the other's words and turning their sense is a familiar pattern — though this poem is thought to have been added later.
Source
Yamato Monogatari
Other