Game saves are not tied to the choice system, you can load earlier saves just like in any game. And you can't meet her because her dates are not yet implemented. We are going to rework the majority of the dating content in the game, and Camila will be removed from the game as we are trying to reduce the size of the cast and focus on the characters that matter most, so her dates will be removed. You can read more on that on our latest Patreon (public) posts.