The kid is a plus to you? Also, I really don't like Sasuga's way of bringing up that common sense is in fact present in this manga, but only after all the characters completly disregarded it. And while it's not completly related to this, just because you trust your significant other doesn't mean...
There is no misunderstanding, Kyoko is just insecure that a girl that probably likes his man has a lot of things in common with him, which suck but at the same time she can't lash out because nobody is doing anything wrong either.
If the spoilers are true, and I have no reason to believe otherwhise, then this is as far as I go, this cookie cutter D&D campaigns' main point of interest are the characters since their setting is as generic as it gets, the MC is a useless doormat despite his strenght and not very sharp since...