Financial security is very important and is toward the top (if not at the top) of reasons that a wife walks away. Especially at the beginning, it will be hard to do stuff for you. Your every thought will be on her. That's normal.
My W and I are in counseling now, but one mistake I made early on was not giving her space. In my experience (no OM), giving her space is necessary and helps you not to pursue.
My personal experience is that she will be paying attention to what you are doing even if you don't think she is....especially the financial stuff if that is a weakness of yours. Not including myself, there are at least two others with a WAW and financial stuff (income disparity, bankruptcy, etc) that was a direct issue.
