In my opinion the points of the paths are based on the two endings, one where the couple returns as before, another, inevitable fault, there could also be other endings, but following the right path, if David keeps it pure, or not, what will be what is important in my opinion are Anna's actions, David is under Kendra's scam, so in spite of himself, he has excuses, but Anna behaves in the way she behaves only through her will and her choices, therefore a serious and confident Anna to unmask things, will lead to a healthy ending, an Anna version of sex with others, well, it goes without saying, that in the end, when everything will be discovered, that the couple will discover who organized everything, at that point, the actions of Anna, they will be subject to David's forgiveness or not, and that's another possible ending. the way I see it, it's not so much what David does, but what Anna chooses in the various options, naturally, the less she trusts David, the more she is inclined to make bad choices, this is certainly what will lead to bad endings for the couple, and perhaps worse for Anna, where in the event of many betrayals, David will also take away his daughter. but I repeat, it is my assessments of how the plot is presenting itself, in my opinion, it is what we choose to do with Anna, that will determine the endings.