Dude, you shouldn't be moping around crying the oh no "my wife left me" to the internet. You may have a little trouble finding the actuall info that NEED to. Lucky for you there was a time when my wife left...
If you need some clarity to get her back YOU will get that info here
@http://changingthecycle.com/can-i-save-my-marriage
You can put a stop to her straying at almost an instant, and not only get her to come back to you, you will have all the tools to sort it all out...