“Then I have reason to hate you. Because if you do not love her, you’ve ruined all our lives for nothing.”
So, it turns out there’s no such thing as magic after all. Angelique doesn’t cast spells; she’s just a superstitious girl who plays make-believe voodoo games. The “visions” are just dreams; the “enchantments” are just bad choices.
Josette and Jeremiah didn’t break Barnabas’ heart because they were under a spell. You can’t blame the magic rose water, or the spiked hot toddy. They’ve both been walking around saying things like “we couldn’t help it” and “we didn’t know what we were doing”, and Barnabas treats those excuses with the frozen contempt that they deserve.
And then Barnabas asks the one devastating question that they simply can’t answer, the question that blows the whole family to pieces.