I don't know seems to me like she's gotten used to the sitch. Its a form of denial, don't want to admit they are wrong, so they drag out the Misery. I think you should go dark. Let her know that you don't like how things have deteriorated, and how you want to fix things, but you don't have to accept her behavior. As for the whole sexuality thing mine still clings to being bi with a death grip. It's the whole identity issue. She is struggling with picking a label for herself. In a way it's a very cheap cop out. Like mine your W knows that life without you would not be as pleasant, and guess what she resents YOU for it too.
She feels helpless and trapped, does not want to accept life without you, but is still too angry to accept life with you. Make her believe she is getting closer to losing you, it might be the last push she needs.
