I feel bad for you bro, but from what you've posted, it seems you are reluctant to realize that your wife either simply had a bad attitude or lost her interest in you. No girl would need/want to have an affair if the opposite was true. She was ultimately no good for you. Forget about her and focus on your kids; they're what's important now. I know I can't realize how devastating this whole thing is for ya, but it's one hell of a learning experience that you can use to your advantage. Learn from it, heal, and move onto better things.
And if worse comes to worst, this might help:
http://www.askmen.com/money/investing/28_investing.html
Better times are ahead, even though it doesn't seem like it now.
http://www.askmen.com/dating/the_system/index.html
And if worse comes to worst, this might help:
http://www.askmen.com/money/investing/28_investing.html
Better times are ahead, even though it doesn't seem like it now.
http://www.askmen.com/dating/the_system/index.html

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