Also you have to know what exactly happened there — she did not want him to drink at all or just not go with machmiring shittos.
Since the story isn’t real, let’s go with a reasonable story.
A man is used to getting quite drunk on Purim, as per many shittos, and the minhag of many segments of klal Yisroel. However, his wife (like many) doesn’t want this, and in fact, is extremely upset about it.
So they go to their rav who says he should follow the Rema’s shittah, as recommended by Mishnah B’rurah, to drink more than usual and go to sleep.
The reactions here on either side are misguided.
Some feel that based on the wife’s wishes, halachah should be disregarded, and/or that it’s childish to ask a rav. Chas V’shalom! We don’t throw away the Torah based on how it makes us feel.
Others seem to think the rav is not following halachah. This is also not true. He is, after all, paskening like the Mishnah B’rurah! If the wife was amenable, maybe for this man, getting very drunk is the proper way to do the mitzvah. However, under the circumstances, he can certainly rely on the Rema’s shittah, which is, after all, what the Mishnah B’rurah holds l’chatchilah.