@Hiyoko
Spoiler!
On first timeline the family was already brainwashed before MC annd Lorena came to the mansion. The main villain had done it. He used judical law and magic. It's not a curse. After Lorena came, the brainwashing was getting stronger. That's what I remember. And that wasn't because of Lorena's curse, the black magic in nacht's house was the cause: the more they love the person, the more they would hate/be indifferent to them. It's not that they didn't love her but the magic made them hate/forget her plus the brainwashing. But in second timeline it didn't work because Sienna unconciously purified the house and the main antagonist couldn't get near them.