.When Demeter shows off her daughter and then Hades sees that he fell in love with her so he decide to tell Demeter if he can marry her but she said no.
My daughter my beautiful daughter
Hades decides that he is going to whatever it takes to marry her so then one day Persephone was in the garden with some of her friends and out of nowhere Hades comes and kidnaps her.
Why am i here
Here eat this you look hungry
The girls did not see anything because they were to scared and shocked but Zeus saw but decide to keep quiet and Demeter was sad and went to the Helios and told her that Hades took her and that was revenge.
I missed you
Are you happy here
Demeter had a really bad melt down and now she is the god of the food and the weather so while the time past that Hades did not come back there would not be food in earth and cold and a lot of people would die.
Help make it stop
But the girl was crying so Hades gave her a fruit that would make her miss the underworld so then Zeus told Hades to come and when they got there they said one month they asked the girl and she said the underworld.
But when they decided on something Demeter when she was by herself she would let earth work by itself and that would be winter but if Persephone is with her it is summer for earth.