I don't think the game is broken, just some routes, for example I did two tests:
1 - allows the wife to go out with Jenna and Christina, but always selecting the options about cheating with the wife (this does not stop her from cheating, the difference is that in the end she is angry with Jenna for influencing her to have sex with another guy) . Even so, on this route I managed to have the option of having a threesome between the MC, his wife and Christina.
2 - doesn't allow the wife to even go out with Jenna, but when I get to the threesome part with Christina, even if I select the option in the app for Christina to forget the BBC, the route simply doesn't start and the wife ends up going with Christina having ffm with BBC and she talks to Jenna again and this time she is happy that she tried BBC.