Mike, Prayers do work miracles especially when combined with good DBing efforts.In my case,St. Jude( the patron saint of lost causes) was significant source of help,too.
You are right to proceed with caution. Keep the lights on "dim"(keeping a calm and non- judgmental demeanor) until your wife has truly experienced her desire for you for a significant period of time.
You know, too well, what happens when you rush toward her...she backs off. As the distancer,you have the upper hand in the situ right now.Don't give up your place until she is solid in her desire to work things out.Please insist that she receive therapy from a "marriage oriented" therapist.
May God bless you and keep you safe on your journey!