You aren't crazy and it's not the alcoholic part of your brain. Sometimes there is no logic because we are socialized in ways that don't make sense. I know of people who are super conscious about their diets such as being vegetarians, buying organic food and cleansing regularly but yet they don't blink an eye at regularly going out and getting black out drunk on beer. Heaven forbid they eat "bad" calories but drinking beer to excess is socially accepted as a matter of boasting how messed up they got.
Red velvet chocolate cake with cream cheese frosting was a life saver during those early days of sobriety. To top that off, I'd also pick up chips and other junk food and dig into that on the walk home from the store before tearing into the cake.