So kids at Yale mocked Benjamin, and he plots revenge. His dad takes him out to meet people and he ends up meeting and marrying Hildegarde, who like older men. They have a son named Roscoe (I'm too black not to find that amusing). Ben loses interest in his wife because she's gotten old (forty isn't even that old!). He goes off to fight in the Spanish-American War, comes back, and realizes he's still getting younger as he gets older.
Like, okay, the aging thing is weird. I can understand him being upset by that, but I'm still hung up on how he's just straight up disinterested in his wife now that she's old. He better not cheat.