This is another marriage heading for divorce court due to outside interference. The husband has to make a choice, does he want to hang out with his friends and get drunk or remain happily married.
I don’t think the husband or his friend are ready for a long term marriage. You make a big deal about if it’s a Mitzvah to get drunk. But when the husband’s Rav rules that he shouldn’t drink I don’t think the coffee room should try to convince him to go against both his Rav and his wife.