I fail to see how a guy dating two... ahem... roommates at the same time breaks any rules whatsoever as long as they don't have sex with him at the same time... ( Something I would LOVE to see, btw, but does NOT need to happen in this scenario.) However, I have to admit the folks at THAT place aren't always rational.
EDIT: I guess I should also make clear what I am and am not doing here. I am NOT demanding anything. I have too much respect for the Dev and his story to do that. I'm not even seriously asking for anything. I understand his reticence to take the story in that direction. What I AM doing is pointing out another path which seems to be supported by the story so-far and would be desirable as an option to some small subset of players but seems to be being dismissed from fear and a fundamental misunderstanding of the kind of relationship dynamic implied. (Everybody seems to assume that in a poly relationship, of course everybody's fucking each other, but that just isn't the case. I mean, technically, you can have an ace polycule where nobody is fucking each other. Not very interesting from an H-game perspective, but there you go!)