Actually, no, it was that the choice was made for me. It was a pop up dialogue that said I had to choose. Knowing now that this isn't a harem-type game, that now makes some sense.Are you complaining that when you get caught by one girlfriend with another you don't get to break up with all of them at once, is that it?
And, part of the fun of some harem type games is the ability to have it all come to ruin from your choices. So there is still some replay ability in the "gotta win them all" types of harem games too.
I can see this game now, is giving you some choices to see what direction you'll push the MC in to (getting caught might be one of them, I don't know, haven't got that far in to the story yet), but others were made for me.