ngu, by going full steam ahead they are legitimizing what they have done, "the ultimate sin". Love is considered the ultimate legitimzer of anything we do. S thinks "if I wasn't truly in love with this OP then this would be wrong, so therefore because I am so in love WTH is your problem with it!" They feel frustrated that we just can't accept it and carry on because "love" is the ultimate in making it OK, in their eyes. Stubborn, I remember on the "dumbest thing" thread one fellow said his W's OM told her "God says this is OK" Wow, where do you go after that! Thanks for checking in folks.
