This went way past the useless territory. It's been a while since a character in a yuri story pissed me off this much. There is dumb, and then there is plain oblivious. Curse my brain for thinking too much on this. So the wife forgot husband's business trip, also somehow missed the bit where the husband was packing for a 3 months business trip. Did she literally sleep her entire life away and just not retain any useful information? The husband/wife relationship is also stupidly shakey judging by her behavior in the chapter. Unless plot twist, the husband's nearly as space brained as the wife. In that case, match made in black hole I guess.
And gosh darn it, I expected some form of romantic or yandere shenanigans involving boat or kitchen utensils. There was no payoff whatsoever. The panel with the boat is more rewarding than the lackluster space cadet end. Pretty weak way to end the one-shot collection I have to say. The other one-shots are pretty great though.