Let me just share this, since I know it can and will happen, when God wakes her up out of her fog, things will not be pretty for her. I just pray for everybody's sake that she wakes up before you are gone. The Good Lord does not give us more than we can handle and always gives us a way out of the wilderness. Pray for strength and composure, try not pay any attention to the little things like that (buying a bed).
She is completely lost and is just operating off of survival instinct. Protect the finances as best as you can for you and the kids. Let the "Almighty" deal with her in his way, he has a funny way of letting us know what we should do. If you are anxious or overwhelmed with emotions at times it is understandable. Do nothing except get through the emotional phase.
They are the enemy at this point, just find peace and keep as busy as you can. Try not to think about it, easier said than done, but trust, have faith, and know God is working his plan and will get you through this difficult time. In times of "storms" in life I find some peace and comfort in Psalms, Proverbs, and the Gospel. If you need something else, ask for it and thank and praise him knowing it will be done for you.
Of course the caveat to that is God is never late, but he is never early either. It is all in his perfect timing. He has a reason why he just doesn't fix it. I don't understand it but I assure you the teachings in this time are beneficial. I would guess he wants a closer relationship with you, like a parent to their child and since your wife made her choice "free will" he is going to take this time to tell you something. I recommend some books by Joyce Meyer or John Eldredge to read when you run out of things to do. Both write good stuff and it isn't too difficult to follow.
Hang in there, this storm will pass.
Married:10 years D final 8/28/08 10 minutes is all it took Life goes on and DB was no small part in growing from the Divorce!