I am the same way. I want to know everything. I feel I have a puzzle and I am missing pieces. Not in the center but STILL I WANT IT complete damn it!!
BUT, in your case, right now, she is NOT refusing to tell you all you need to know. She is trying to avoid it, if possible, see how far she can go without admitting all her wrong doings. She is probably scared and ashamed and and and... Make it clear to her, sit back and let her decide what she wants to do.
