Hmmmmm. It could be sincere second thoughts she's having, or it could merely be a "St. Mrszew" period (I'll have to find you the notes from my sitch, when the fetching Mrs. Starsky was going thru her "St. Sally" period. Exact same behavior, right down to the making of breakfast!)
And no, never discount The Big Guy having His hand on the timing of the whole thing. I prayed throughout my sitch, including just before instructing my atty to have her served with the divorce papers. A "Lord, if this is NOT what I'm supposed to do here, I pray that you'll clearly show me, TODAY" type of prayer. As my sitch turned out, my wife needed that D jolt to wake her up as to what she was about to throw away, but maybe your wife is warming, who knows.
At some point, you're going to have to pull the trigger though. I pray that she turns away from what she's doing, I really do!