The game is a linear visual novel, it gives you the illusion that you can change what happens in the story with all the choices presented but they don't do shit, you are forced to follow the story in one way anyway.such a minor thing normally wouldnt be a problem for me in games, but it got mentioned so many times that it became almost immersion breaking to me: despite all of the possibilities to grope Elizabeth on the train in the early parts of the game, i never once did it, and yet for the rest of the game her dialogue acted like i did it multiple times. I get that she likes exhibitionism and that was supposed to kind of lead her into it, but still, i feel the author should've accomodated for the possibility of me not groping somebody in public, and added alternative dialogue options in future scenes.
Even if this game isn't a "proper" visual novel I still enjoyed it because the plot is good, and like you said Elizabeth is an exhibitionist so I would have groped her anyway. Girls like her want to be corrupted so why not