I think Lize doesnt have the ability to love. She grew up being abused by the Sinclair twins when she was suddenly accepted into the Rudwick family and showered with love and attention from every angle. I don’t think she truly loves any of them. She thrives as light in darkness, since Edith isn’t her darkness like in the original plot she cannot thrive as the light. She doesn’t love Cliff nor does she truly love Killian. In the original story she chose Cliff over Killian because she still had both options and Cliff as an option would give her power and control as a Duchess rather than starting over with Killian on his territory. Now that Killian is no longer an option for her she feels a sense of loss that she has less attention on her than she had before Edith came along. It also shows when she is surprised that Catherine was teaching Edith to ride a horse and when Catherine invited her to a party. She knows she is losing attention from Catherine and its making her feel dark rather than her seemingly forever bright. She has thrived on being the light to Edith and the others dark but since Edith is now a growing light, all she can be is Dark.
The age gap is only 3 years. Its not that deep. The age of consent is 16 and she’s 17. American laws only work best in America. Korean laws work best in Korea. They cant just make laws just to make them. They are thought through, accepted and enforced. Stop claiming pedophilia for every single thing. Just din’t read it or comment on it. It literally wastes your time just to write out a complaint that no one cares about. Its normal for girls to have crushes on guys older than them. In different parts of the world, people find things Americans see as weird, normal. And thing Americans find normal, other nations find weird. Its just how sociology works. “Seeing the strange in the familiar” im sure most americans parents have massive age gaps yet ou dont call them pedos.