Welcome aboard Caddie. So sorry to hear about your problems. The more marital history you can give us, the better it helps us to see an overall picture.
What are the ages of you and wife? Are there children?
What was really in New Orleans that drew her there? To get a job that far from home seems pretty radical, especially when she leaves her H behind and has no intentions or reconciling.
When a woman refuses to work on reconciliation, and seems fine with separation but doesn't want to file for divorce.........I have to think she is getting more benefits by remaining legally married to her H, than if she were to be divorced. Are you helping her financially?
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!