Demeter asked Persephone´s father and mother is they can marry her and they weren't accepting it because they didn´t want her to get brokenhearted. My evidence for that is, in paragraph h 2 it explains that ¨Demeter had an obsessed love for her only daughter and kept all men away from her.
Persephone goes to the valley to pick out some flowers and the ground ¨cleaves¨ open. Nobody knew were she was or what happened.
They thought Demeter was a bad guy until he helped them find their daughter when they had no idea where she was. They were also suspicious because Helio wasn´t consirned.
Thus tried to find a solution to find her and it was that he went to trick the bride by giving her a few pomegranate seeds which would make her tell him where she was.
The bride had told him that she wanted to be with her husband and they had found her after they told Demeter that.
Persephone decided to stay half months in Hades and Queen of the underworld. She also got to be with her husband.