Going of the crazy person eyes she has I think she's really upset over the fact that her husband has been having thoughts he doesn't express to her and she feels that not knowing (or thinking she knows) his mindset is really shaking her up. I assume she's a big manipulator and being married for so long while her husband just has these thoughts he's never really discussed (because they're male thoughts) leaves her feeling she don't have as much control as she thought she did previously.