Read the AA Big Book together. It will probably turn out that the 'God' thing is not the bogeyman he imagines it to be, and is possibly 'contempt prior to investigation'.
Read 'Rational Recovery' which is available on the AVRT website.
Also, there are actually many more things to do when sober, than when drinking is no longer a choice, but is something you are chained to.... Play a game, go for a walk, take dancing lessons, meditate together, get a facebook account and explore what others are doing, watch funny you tube videos, play badminton in the backyard, go to a new restaurant, go for an evening picnic, get a pet, do a crossword puzzle, learn a new language, volunteer at a homeless shelter, find an activity in the entertainment section of your newspaper and do something you haven't done before, dress up kinky and have se....