The vast distances between the stars is nothing compared to the infinite distances between human hearts.
Shizue, though she wasn't an especially popular geisha, was considered by everyone in Gion to be the most fortunate of women. For thirty years she'd been the mistress of a pharmacist. He wasn't a wealthy man, and she wasn't a beauty; but you could have looked all over Kyoto and not found two people who enjoyed each other's company as much as they did.
"Nathan, its been said theres one word that will free us from the weight and pain of life. And that word is Love. And I believe that. That doesnt mean that it hasnt been hard or that it wont be. It just means that I found a stillness and a bravery in myself with you. You make me brave. And I will love you until the end of time. This I vow today."
— Haley, One Tree Hill
Homura is not a devil. And she is not a goddess. She is us. She is a lovesick girl. She is every person that has ever done something monumentally stupid for someone they love. Love - the strongest, the most passionate, the most irrational of human emotion. There's no value we can place on it. There's nothing we can trade it for. Homura's rebellion is not some fall from heaven; it's a celebration of humanity.
Usually, in the movies, it's just assumed the lovers were drawn toward each other by magnetism or concealed springs or something.