I don't know, the more I think about it, the less sense it makes. Military stay at home wives are very well taken care of in the event of divorce. They get a huge chunk of their husband's paycheck, child support, a piece of his retirement, etc. But I suppose there's also the "what would mom and dad think" factor.

Even though she may be well cared for, she surely would not be as well off financially as she is right now, nor will her children, who will have to go into daycare so she can get a job.

I would bet that she wants to save her M, and that she is afraid her H will not want to if she helps end his career.