I wonder what these people said that when they read OF HUMAN BONDAGE, by Somerset Maugham? I have a feeling that these folks don't spend a lot of time reading great literature and they obviously don't want you to do so either.
It's a morality play...of a different time/era when standards were high and most people who read it, at some level, understood the difference of right/wrong.
How can you compare with sexy vampire making young teens swoon....and young teens having no moral compass to understand the pitfalls.
Edward also said he couldn’t go on without her. Edward gave up his way of life for her. He denied his basic nature for her.
We see it more in Bella only because the story is told from her point of view. But in the end, Bella is no more a slave to Edward than he is to her.
It’s just that when we see the clear signs that Edward is stricken, Bella doubts it and we get that doubt because it’s her story, not his.