I'm liking the direction cac is going in. "Keep your enemies closer." Why not this: every time you go to the club (and let that be OFTEN), single him out and chat with him about the stuff guys talk about... sports, cars, ask if he has a girlfriend. Ask about weight training, or whatever he does. Cozy up to him-- I mean, don't overdo, but at the health club I go to, the trainers are very friendly with the patrons, chatting, encouraging, etc. Pull him into your circle. Heck, invite your w's co-workers to the house for a party, and include him. If she objects, and she likely will, don't take no for an answer.
I tell you, back in the day when I dallied with married me, if the guy's wife had singled me out for chatting, friendship, etc., it would have freaked me out bigtime.
