Hades and Persephone a Love Through all Times

Hades and Persephone have been married for several decades now, but the story is split, part of it is them currently going though their daily lives while other parts are flashbacks to how they met and fell in love.

May contain a little bit of lmn
Also, this is loosely based on the original myth, don't hold me to any fact please and thank you.

Preview:

Persephone left the light and sun as she descended into the cave at the end of the world, gliding over the rough stone as if it were flat grass, never loosing her step or faulting, traveling the way she had countless times before.
The lower she went the darker it became, until it felt as if there was nothing but darkness, the world lost to her.
Then the air pressure changed she was no longer climbing down but walking along the bottom of the cavern, the stalagmites and stalactites dripping around her creating an eerie drip drop ... drip drop..., the sound enough could drive lost men mad according to legend, but to Persephone it was the melody of home coming. She traveled down further still till the cavern widened out to an underground cave. The cavern to any mortal would look like any normal cavern, long and tall stretching out up to where the sealing and the darkness seemed to be one, with no light or airflow except for the little air coming from the tunnel. Yet, to the eyes of someone who new magic the cavern was more then it appeared to be. At the bottom of the cavern was a white river, but the white water was not the strangest thing in the cavern, along the river banks there were countless white bobbing shapes, and at the shore line there was a long river boat dating back centuries, and leaning agains the boat with a clipboard was a tall hooded figure, Charon.