Ok, so if you haven't done anything to cause this level of distrust in her, then where is she perceiving it?

Work with me on this. Something (and I doubt it is financial) has her spooked. What do you think it is?

Has she listened to other voicemail that your ex has left regarding her willingness to take you back?

There is something substantial to her insecurity, real or perceived. Your wife is in claws-bared protection mode. do you know why?

-NOPkins-

I will ferret out an affair at any opportunity.

-An affair is the embodiment of entitlement, fueled by resentment and lack of respect.
-An infidel will remain unreachable so long as their sense of entitlement exceeds their ability to reason.