I think you are spending way to much effort trying to figure out what is going on in your wifes head. You need to detach from that and focus again on you and give her enough space with support as required to figure out herself. Getting into her head will only get you into trouble.
In regards to Retrouville, I would wait and see. if she wants to go, then go. If not , then don't go. Whats the worst things that can happen? You loose your money because either doesn't go. She figures out she does not want to be together again. You come out still in limbo. If you don't go because you pull the plug and things don't work out in the future you may be second guessing your decision. let her makes this decision, its not going to kill you what ever she chooses.
Remember, this is a marathon and not a sprint. Have patience, things will work out in which ever direction they are meant too.
Twisting on Life's Rope Me53 W53 M20 D21 D19 D16 BD 2-2013 D final 1-2015 _________________________ "Dream about tomorrow, Live for today, Learn from yesterday"