>>114971614Toffee is royalty. He is willing to give up everything to be with Moon, but Moon isn't willing to give up her family and lets Toffee down gently. Toffee doesn't take the break-up well and encourages his family to go to war.
Septarsis is winning and Moon, desperate, forces Glossaryck to unlock Eclipsa's chapter after Comet is killed in an assassination. She discovers a spell there that functions the same way as the Whispering Spell does with the wand; it destroys the heart of the person it's used on. However, it can only be used if there is a "path" to someone's heart. Moon goes full-Machiavellian and issues a writ of surrender to Toffee, claiming that Mewni's given up.
While filling out the terms of surrender, Moon would use that time to try and gain pity from Toffee. She would lie and say she still has feelings for him, and with her mother dead and Mewni in ruins they can finally be together forever since she's now a prisoner of war. Toffee would be delighted, and start discussing future plans. It would be then that Moon would try to use the spell on him. It manages to only take off one finger.
While other Septarians flee in terror, Moon would demand to know whether or not he still loved her before she attacked him, trying to uncover why the spell failed. Toffee would reply that he loved the idea of dating something as exotic as a Mewman, but after the break-up he realized that Moon was just as cold as any other monster. Her trying to murder him like he murdered Comet only proves that they're the same, in his eyes.
Moon would declare that she isn't a monster, because everything she's done so far has been out of love for her people. As he disappeared into the shadows would reply, "I suppose Mewmans can love like monsters, after all." It would be then that Moon realizes the spell failed not because Toffee loved too little, but because she still loves too much. Thus, she grows up to become a hardened queen, the "Iron Butterfly" devoid of compassion.