Weird to say, but this took a nosedive with the wife's POV. Scenes and the art are hot, and it's all still pretty well written, but the characters and the story just get worse and worse. Like, first the husband was dislikeable because he was a paranoid idiot, but now it turns out that he's mostly just a huge idiot and that the wife is one too (who also gets corrupted way too fast to care).
Probably would have been better if the story had been told from the ntr dude's POV. Guy would have still been an utter loser, but perhaps it wouldn't have felt like such a wish fulfillment acid trip.