I just keep these few things in mind:
When I was young and asked what I want to be when I grow up. It was definately NOT, "I would like to be an alcoholic and destroy relationships and ruin my life." We do things under effects of alcohol that 'normal' people would deem us crazy and manical. In a sober life we are be the most loving, caring and gratious people you would ever meet. I know that is who I am. (Today and most likely tomorrow)
And feeling guilty has nothing to do with being 'caught' and everything to do with feelings of remorse / regret and caring for that other person.