You can also go OUT for a night and not tell her where your'e going...
Give her an alternate number to call you for emergencies for the night... You need to do things to trigger her curiousity...
You can tell her later it was a business meeting :
If you are going to divorce me and our son then our finances are going to be a LOT tighter than they were before.. I am working on a new business and setting up an education fund for him... I really hate having to put our son through this, but at least I can give him a good education
Make sure you get lots of good articles...
Make sure you don't push the articles on her... just tell her you read them and out of respect for the marriage and your son you feel obligated to share the info with her... tell her you don't like the sound of any of it, but its important to educate yourself on what you're getting into
