I had a sim couple living in the Nookstone lot in Oasis Springs. The female was super pregnant and taking a nap in the little bedroom nook. Meanwhile, her fiancé was getting it on with her sister in the shower. After they did the deed, they shared one last kiss in the living room nook as she was waking from her nap. Even though they were on the other side of a wall where she could not see them at all, she immediately knew they were cheating (because game code recognized her as being in the “same room” as them since open concept) as soon as she woke up and she got super sad and angry and it totally wrecked the storyline I was working on. UGH. Had to use some cheat codes to repair their relationship that night haha. I dislike when the stories I create in my head don’t play out organically on screen and I have to fudge things like that.