I want to understand how the star options actually influence the relationship with the characters
I still have some doubts about this because of two things:
Some say that the star options are either for media or romance, but I had an star option that was not media related with Thomas, and countless others with Jessy even though LGBT+ romances aren't available in Duskwood.
A lot of these star options have dialogues that aren't romantic in themselves so while I might see this as just caring deeply about the character, the game might interpret it as me choosing a romantic route with said character. Because of that I accidentally made Jake fall in love with me in my first gameplay when that wasn't my intention at all.
Before I replay the game to see the other routes, I want to know how this mechanic actually works so I won't make the same mistake again.