If this would be the case, we may not add them as part of the game right now as their romantic relationships to each other are something that we want to avoid as everyone has their preferred ship. As the writer, I will not say anyone of them is canon as it is all possible situations altogether, especially since the 6 treats each other differenly, such as Koku with Leo or Ridge, yet having a relationship with each or both is not impossible.
And well, writing all of those possibilities will only drain us for any future projects or updates.