I think that you already know that you should just delete the email and continue on with your day. His life outcome, regardless of what that is, is not your responsibility. If you make it yours, then you do so at the expense of your family.
All the best, -NOPkins-
I will ferret out an affair at any opportunity.
-An affair is the embodiment of entitlement, fueled by resentment and lack of respect. -An infidel will remain unreachable so long as their sense of entitlement exceeds their ability to reason.
