lol, people need to stop saying no walkthrough needed on every game they've played.
There are plenty of games on this site where I've either felt like I absolutely needed or at the very least wanted a walkthrough to try and figure out which choices led to which outcomes (or how to solve less obvious point-and-click style puzzles). But I honestly don't think there was a single moment when I felt like I needed one for this game.
Some games simply don't. Some have obvious choices, some have in-game mechanics for seeing the impact your choices have, some are mainly linear where your choices are really just to either pursue a specific LI or not, and so on.
In this game your choices are mainly determining whether you're more charming or more dominant with a given LI, so you can almost always figure out what each choice does just from context alone, and in the rare cases you can't you can always check the LI stats and see how their affection bar has shifted (and there's already been a lot of discussion in this thread on which side means what).
So no walkthrough needed.