Whatever qualities she has as a writer (I've only seen the movies, but I'm guessing they are faithful to the books), she does have a genuine knack of tapping into the psyche of codependent personality.

That's nothing new. But although the stories echo Wuthering Heights, Bronte wasn't advocating that Catherine should have run off with Healthcliff. In fact, their relationship destroyed both of them. So it's no so much the subject matter but the author's attitude toward the subject that bothers me the most.