Veronica kills Daphne, Emperor goes insane, and he finds a way to rewind time, goes back in the past and treats Daphne better so she falls for him again
Wtf for real ??
Its my personal conspiracy
Hum... I'm more rational : Veronica is ambitious, becomes Daphne's ally and take the throne after Asherad's "accidental" death
Veronica kills Daphne, Emperor goes insane, and he finds a way to rewind time, goes back in the past and treats Daphne better so she falls for him again