The Greek myths are fascinating. And disturbing. But mostly fascinating.
For the myth of Persephone there are so many different versions for what happened; Hades was struck by an arrow from Eros because Aphrodite wanted to make sure Persephone didn't become a virgin goddess. Hades was promised Persephone's hand in marriage by her father, Zeus, though told to kidnap her as her mother, Demeter, wouldn't approve. Hades came across her in a field and kidnapped her. And my favourite, Persephone wandered into the Underworld on her own and he was intrigued because she lacked fear for where she was and who he was.
Set aside that Zeus and Demeter were full siblings and had a child together, that Hades is their brother and so an uncle to Persephone, and that somewhere someone came up with Persephone having children not to her husband but to Zeus, her father... yeah... and this is an interesting story. It mostly centres around Demeter and the rage and grief she felt when she lost her child and the efforts she went through to get her back. Once Persephone has gone to the Underworld, we don't hear much more until Demeter finds her. So there is a gap in the myth. Was she sad and afraid and being abused? Did she find Hades intriguing? Was she staying with him by choice and not force? The myth skips that and only tells of the struggle of Demeter.
How does this explain the season of spring, summer, autumn, winter?
Because Persephone has eaten the pomegranate, food from her captor, she is bound to him for all eternity and will always return. Though Demeter is able to get her daughter back, she can't keep her all year. A deal was struck and Demeter would have Persephone for spring and summer and she would return to Hades for autumn and winter. With her mother she is the goddess of spring and they bring fertility and good crops to the mortals. When she leaves, her mother is saddened and doesn't work the land and so it becomes cold and nothing grows (not true, some plants thrive during the cold).
I really like Hades. He isn't like his brothers, he's patient, scary as hell, and loyal. Where we hear of Zeus cheating on Hera and being sexually abusive, that is never said about Hades. Which makes me question the rash decision to kidnap Persephone.
Persephone is the sort of character who is rather blank from the start. If she is kidnapped, then she isn't an active participant in what happens to her, but if she chose to go to the Underworld then she is active and must have a strong personality.
And Demeter is scary. She isn't a bad person, she is just very, very, very clingy.
Essentially, I am attempting to use this to write an origin and continuing story of Persephone.