Yeah I find it pretty disappointing there's no strict monogamous route. You pretty much have to put up with the cuckoldry and futanari and can't turn it off. What this game is doing with the AI assisted content is interesting though. Hopefully there are games in the future that do what this one is doing for more vanilla players. I really like the concept of the game, and I actually enjoy the mini-games. They're interesting, but the game's story itself though pretty comical, is not really hitting the 'romance' note for me.
Which is odd, because there's a lot of shit to do in this game, and you can easily spend hours playing trying to find all of the different still images. (With no way to go back and see them all in a Gallery, mind you.)