My dad, who is now 3 years sober, even tried to tell me I was overreacting to quitting, even though I was the one who had to take him to rehab. He just doesn't want to have to look at his own drinking habit.
I was the same kind of drinker. Didn't have to drink every day, but every time I went out i'd outdrink everyone. 4 beer became 5, became 6, then i'd go up to the bar to get change and sneak a shot in. Then i'd come home and drink more out of the fridge.