Is there any evidence that Hindley abused Catherrine too? because it would also explain the deep-rooted dislike she had for her brother

I've read the book and seen many adaptations of the novel and in any case there are evidence that Hindley abused Catherine. Maybe just in a verbal way (being rude to her, for example), I don't think that he abused her in any other way. She disliked him because he was a bad person since childhood; he was mean to Heathcliff and mean to pretty much everybody ;)

Hope this made sense LOL

no,he didnt.he was angry that catherine would fall in 愛 with heathcliff,and she was angry that he opposed that love.thats all.