WOW, my AH could have written that, exactly. When I confronted his dad, he came back with the same response, DENIAL. And this takes the cake:
Originally Posted by
Sunshine1 
Our relationship is not going so well and she's pinning
much of it on my drinking habits.
The drinking IS the cause of marriage problems, no doubt about it, and for him to question the cause of their problems is DENIAL at it's best.
My AH, king of denial, has been "on the wagon" for 9 days, and we're getting along great. Alcohol IS the problem. I hope your brother comes to that realization. But you and you SIL are right!