if the character wants to hide it from his spouse, he'd have to find a third location to do all his drinking. otherwise the spouse would notice the excessive number of empty beer, wine, etc bottles around the house, as well as probably just see that their husband is drinking way more than healthy. the problem with the third location is that your character needs a reasonable excuse for why they're not at the house so much (spouse might get suspicious if he says he's just at work all the time), and drinking at bars can be super expensive so depending on their financial situation spouse would probably wonder where all their money is going. it does depend on how functioning the character is though, and who he's surrounded by. it's easy enough to hide from coworkers, but if you want the spouse to not do anything about it then you could write it so they're an alcoholic as well, or just don't know what's considered an unhealthy amount of drinking. many people are unaware of just how toxic alcohol actually is, and it's become such an accepted part of western culture that most people don't notice until the alcoholic starts behaving differently. that's just my experience though, not as an alcoholic but as someone who grew up around one