So here is a thing, from what I am assuming is that while getting the good ending you were somehow a bit close to axel and the bull tribe which resulted in increase of your suspect points of naxus towards you. Basically if your suspect points from naxus are more than 3 then naxus won't show up in tavern. Usually naxus shows up during evening time. Also as a result, you won't be able to get the 2 sex scenes with naxus. One where he is in tavern and the second is when you call him in bathhouse