Bro I have seen this story many times over, MC is going to be a beta cuck loser and let his wife fuck other dudes, that's it then he will get off on and be even more of a cuck simp.
As I have said before don't judge a book by its cover, Neither of the things that you have guessed are correct for this update. you make decisions as both MMC and FMC and Ethan got a whole new revamp in this update I don't think anyone would describe him as a loser.
Overall everyone has a different taste but judging a game without playing it or by just playing the first update and not the rest of the story and building a false mindset about the whole story is a stupid thing to do but that's just my opinion
Up until now there is no such scene in the released updates. current fetishes that are in there include: Cheating, voyeurism, exhibitionism,
aquaphilia, alvinolagnia, mazophilia, Candaulism, podophilia, crurophilia, Masochism, alvinophilia, Pygophilia, Xenophilia.
These are the fetishes that are in my current updates of course I will add more as we progress but currently there is no cuck fetish I don't know where you got it from.
Well it is easy to see that is where the game going to go right being a cuck just look at your banner bro along with the MC being a quick shot and seeing your other game so yeah I can see that is the way the game will go. So if it does go the NTR cuck route, at least give the revenge option or maybe cuckqueen cause shit that's rare.