I understand all of your confusion. Why can't the OW get her own place? If she isn't paying rent, what is it that he is helping her with? Does H ever stay at your place?
Just a few things I was thinking about. Try to keep it one day at a time....
H-41 (alcoholic) Me-38 D-13 SD-10 T-6yrs M-4.75yrs Bomb-10/4/08 Moved in w/OW 11-13-08