Do NOT WARN the guy, he's going to tell his CO there's some crazy guy that's been emailing him

You tell th CO that this guy is having internet sex with your wife and you insist that it STOP NOW

You tell him you have tons of printouts and screen shots of the behaviour and you will not tolerate that by one of his team

Wondering how he might react? If he ignores you so what.. you TRIED.. you are gonna KICK yourself ayear from now if you DON'T.. you will be wondering why you chocked on it...

Do NOT warn the OM you are going to expose... VERY BAD IDEA... you aer HOPING he will agree to back off again and then you don't have to do the dirty work... you can't TRUST this guy...

JAM the network for thenight then... or keep interrupting her or do whatver you have to do to make it NOT FUN