? There's no contradiction. She's not like, a better person, she just genuinely loves Heathcliff. That doesn't make her good. "So you don't want him" means she viewed Hindley's rejection as permission to keep Heathcliff for herself. She compliments Linton on his dedication to her and her alone. Heathcliff is repeatedly compared to a dog to outline the contradiction between being treated like a feral animal and a beloved family pet.

The issue is that because she's so self-obsessed she believes herself to be the centre of everything going wrong. Because she's the main character of the universe - as evidenced by all the people she cares about the most that laud how sublime she is - she believes that she alone has the autonomy required to cause infinite suffering. Nothing is ever anyone else's fault, because their impact on the world (HER world) is too shallow to cause the kind of devastation SHE could. It didn't even occur to her that Hermann might be cooking up something bad, because she didn't view her with enough depth to predict that she had machinations of her own. This is a mindset common in teenage histrionics and in such a melodramatic storyline I find it a great choice for her.