Accuray
Her "leaving" is at worst an ill conceived escape plan, at best a trick to get her way.

If she truly wanted to leave she would have done so already. Instead she values the comfort and FRIENDSHIP you provide. So she is back, but she is back on her terms.

She then says that her actions make you unhappy, and that makes her unhappy. So does she change her actions? No, she expects you to start being happy with them, so she can be happy too. Happy wives don't leave right?

I think your counselor is spot on, under the current circumstances she has no incentive to change. Furthermore she knows you will put up with a lot to keep her, so, she plays the leaving card to get you to back off.