what trick does Mr. Cutter play on his wife in chapter 15?

They also find Mrs. Cutter, who is indignant because her husband intentionally put her on the wrong train so that he could come back to Black Hawk for an intended rendezvous with Ántonia. Jim notes that Mr. Cutter came up with a needlessly complex plan specifically to outrage Mrs. Cutter, and he comments that it was obviously Mr. Cutter's greatest joy to make his wife upset.