Sounds like the dark cloud of reality is beginning to settle in. I think this is good.
She will probably lash out at you as she begins to realize her dreams of a new wonderful life aren't going to materialize. Just get ready for it and weather it with strength. It will pass.
If I were where you are, I would back off and give her tons of space. Focus on the little guy and yourself. She has to wrestle with this problem. Remember, she's the one who wants out, let her deal with the stark reality of HER decision.
Oh, and definitely stick up for yourself on protecting your interests. Don't be a jerk (know you won't), but let her know what you will be fighting for.
