Those are not hidden choices...Those are ways of playing the game..1st faithful.....2nd confused....3rd corrupt...choose Ana to be confused always ...He give walkthrough in all update...where he show which one is faithful, which option is corrupt and which option is like go with the flow..mostly the one where Ana act as passive. so it's not hidden scene..it's more like yea you will get an option to leave after tease scene and not to go upto full corruption.
Which is always the funny thing about these adult VNs because 99% of players choose the route with the most sex...which is almost always the cheating/slutty route. Even if the faithful routes had as much or more sex it would get boring seeing the same characters fuck over and over again. That's basically what made a story like DMD suck so much in the back half, you can only see those two fuck so much before it's boring.
So the vast majority play one route and the devs still waste a disproportionate amount of their time on the routes nobody plays.
IMHO, in any story about a wife or GF breaking bad the majority of the faithful stuff should be baked-in and not really subject to player decisions. She's faithful for a set amount of time, an event happens to push her away or to other men and now the decisions the player makes is who to fuck. Let them choose if they see her fuck this guy or that guy but even writing, rendering and developing the faithful path beyond a certain point is ignoring the 99%. It's a really bad use of development time.
If a dev is making it a 60/40 split of their time (cheat/faithful) they could easily move it to 90/10, give the user the same exact experience and get updates out quicker.
Point systems are almost always bogus because of this. It's wasted time even making them. 99% will play one route so they'll choose the choice that adds "slut points" (or whatever each game calls them). So you'll always have the points needed to see whatever the next slut scene is.
So forget points and just do what I wrote above and have the player choose to mess around with or not mess around with each specific person in the story. They choose yes and they see that part of the story. They choose no and they don't.
Then...if the dev really gives a shit or enough players that want the minority play-style demand it...make DLC after it's done that institutes a strict faithful route. It doesn't seem hard or confusing to me. When so many prefer one story style, focus the vast majority of your time on it. Give the illusion of choice, at most.