It's not just an inadequate dick trope, he literally doesn't satisfy her in bed and isn't emotionally available. Those are both legitimate grievances. They carry a lot of weight in a marriage. Tons of marriages go sexless because of those reasons, many more turn to cheating/others.
You can't multiple milestones with your wife and hope that "love" gets you through. Relationships need maintenance. In that regard, Sophie actually lasted longer than most wives in porn novellas (note the narrative time jumps).
He literally did satisfy her and was clearly emotionally available. You don't marry someone that doesn't satisfy you, and NTR stories are meant to be about the perfect wife/partner/friend etc., being stolen. Not an easy lay just wandering off like some dementia'd simpleton into a shitty life.
She'd fallen into the big dick trope affair, but was still having sex with Felix right up until the end of the last update, and claiming to enjoy it. She's meant to be a loving wife, a nice person. According to this story she loved Felix so much that she was willing to compromise herself to further his career/their life together but then conversely easily lost all interest in that and her own future, because having sexual relations with a student is always going to be a dumpster fire waiting to happen.
At the first confrontation point (either character) happy ending no.1 as long as neither take shit from Zack. Just a point here, the whole debacle is over tenure so it's only over an academic year ... even if Felix is a wet rag and tenure is refused but dangled like a carrot the whole story can't extend beyond 3 years because by then Zack will have graduated to working in a second hand car lot or wherever failed sport gimps end up ... and we all know that while Zack might be on point as a seducer of dowdy married academics he's no 16%'er (which is a good point, as the game would be more believable on both counts if Zack weren't white ... arguably that's also a good thing because looking at a gallery of white NBA stars is like looking at a roll call of the most ugly people in America). Just to power this point home, Zack clearly has a plentiful supply of fresh young pussy, so what's in it for him? An older sister fetish? A desire to be neutered? Cuckold fetish? but hey this is ntr right, so Zack needs to steal her away not just cuck Felix. What exactly is his motivation?, not being funny but I'd be banging the cheerleaders not some frump that comes with a big trouble sign.
So yeah, if you think that married people can have legitimate grievances over such a short period of time that would legitimately lead them to justify having an affair I'd advise you not to get married because those expectations are rock bottom. As for Sophie lasting longer, not really, she was one minute 'lets have a child' the next she was 'lets get some strange cock' ... and even then she's still playing the I love you card up till the end of the last update.
Like I said originally, it's not all of those things mentioned previously that are the problem with this game (even though they are totally true and problematic in their own right), it's the fact that she has so much more to lose than she could possibly have to gain. Sure some women are like that, pathological risk takers, or just mentally challenged, but that's just not how her character is portrayed ... maybe if the slutty friend trope had been played more prominently we could see that as a credible route to corruption?? Or even if the "Felix is cheating on you lie" had been played hard ... but no, what we get is a woman with everything to lose deciding that a few years(max) supply of big dick is going to be worth living out of a dumpster for the rest of her life.
I have more respect for that teacher that got knocked up by the underage male student who subsequently sued the school etc., and made bank before disappearing, while she went to prison ... because after her release she got back with him and lives happily off of the millions they made. No such possible future for poor old Sophie.
What you can guarantee is that when the shit hits the fan, it will be Sophie that gets covered in it. Which is the opposite of what should happen in an NTR. Felix should be devastated, depressed and suicidal seeing Sophie move on to better things, not taking comfort as she slips under the waves of excrement coming her way. Sure the dev is god and they get to decide what the eventual outcome is but that doesn't make it credible.
