By no means would I ever ever ever advice someone to yell, scream or use any physical force or bully anyone. I shouldn't have used the word aggressive, when I meant to be more persistent or assertive. More to the point of she doesn't want to talk about it, so ask her when she wants to talk about it, or we have to talk about it, its very important to me.
In most situations when we read a post about a wife starting to come around, most of everyone's advice would be to don't rush it and take it slow. In your situation your story is making my heart bleed so I believe my advice would be to maybe push the issue more, explain how you really feel and how important this is in your life.
As I said before I hope you find some form of pot of gold at the end of the rainbow.