It's still kinda messed up she showed him that unconditional love cuz she thought that was her BROTHER like... Also he really kidnapped a wholeass child for some greater good shit bruh bye then his ass went and failed at that killing the entire family (which is kinda well deserved) and her which is not well deserved. And they didn't even account for how Lariette would feel about all of this like this shit real sad and dumb

spoilers
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Lariette is not the real child of the count. She is actually the princess of another kingdom. Lehan is not her real brother, and knows that she's not his real sister, but Lariette doesn't know. Lehan likes Lariette, and blue haired whats her face likes Lehan and knows that he likes Lariette, and so shes jealous. So basically, Rupert killed the count's family bc he also knew Lariette was the daughter of royalty of another country. The count was planning to overthrow Rupert and put Lariette onto the throne instead, even despite the fact that she still didn't know she was a princess in her past life. Tori is a spy, which is why she died/ got killed.