He is the lord of hell. Because he hates the lonely life, he kidnapped you.

Your mother was so sad when she lost her daughter that she became angry, causing Zeus to order Hades to return you. Before you go, Hades gives you a pomegranate and invites you to eat it as a farewell gift. After you ate it, he chuckled.

" Oh well~.. Finally, you belong to me forever "

Pomegranate seeds symbolize the official marriage and you must be here with him forever.