Because they never age in the show, Homer and Marge Simpson are not in our demographic. But the show’s been on 26 years, and they had to be thirtyish when it started, so I say it’s fair to claim that in “reality” they’re Over 50. And sure enough, in the upcoming season, they’ll legally separate, with Homer falling in love with someone else.
This plot development could simply be viewed as a way to spice up a show that’s been around since Bush 41 (and may have seen its best years during Clinton 42). Or, as The Atlantic does, you can be infuriated because this choice is blowing up the longest-running marriage on TV. The writer, Megan Garber, cites the “reacher-settler” theory, saying that in all relationships one party is reaching for someone beyond what he or she merits (Homer), while the other party settles for someone not as good as he or she deserves (Marge).