Realizing that you no longer want to live the way things have been going, is a start. Eskie raises a point about rationalizing that's important to hear. In the world of semantics, some would consider that excuse making or walking on eggshells.

There's having anxiety, then there's having poor behavior. Behavior is about choice, in my opinion.

It's not up to you to rescue her from herself, which is how it comes accross reading about how to deal with a partner with GAD. Focus needs to be one what you will or will not tolerate(boundaries), and what your expectations are within the home(boundaries) and relationship(boundaries).

You can only control your own reactions and behaviors. She needs to work on hers, as those are her responsibilities.