We were talking about reactions people have to choices in real life, though. Not the game.
Even in the context of the game these results are only fixed for any particular decision and/or person. Yeah, mom character doesn't like it if MC appears late in that one situation. It doesn't mean any and every other character will also act the same way if MC is late to their meeting, or even if mom will be similarly upset if MC is late to meeting with her at some other point of the game.
Only really stupid people are going to extrapolate that into "all women will react just like that, every time and in every situation, and it's the 'right' choice that will get me sex". Granted, there's plenty of really stupid people out there.