If he hadn't been full of the 'wife doesn't understand me' crap, meaning if he had treated you better, you would have had more than a one day relationship with your friend's husband.

I guess you got hurt when you bumped into them in the frozen food aisle pretty soon after your one dayer, or maybe saw them looking very happy at a party, and you realised you had been stung.

Well you've had your revenge now and personally you deserve all you get, whereas your 'friend' didn't deserve you.