Hey, Rob. Stop for a second. Breathe, center yourself, whatever. Then think. Which Rob would your wife prefer? The one who continues to drink because he doesn't want to cause her any more pain by admitting he needs help (see the contradiction?), or the one who admits to her that he needs help, whether that be hers or someone else's? The Rob who, as a big guy, could do serious harm to himself or others, or the Rob who's seeking help so he can in turn become a better husband/father/etc?
You helped keep me focused in treatment, man, whether you knew it or not. I know you can do this, too.