Nevertheless it wasn't The poor Progenitor's fault either, since at the end of the day he was still a mortal! Progenitor or not.
Meanwhile his beloved wolf maid was a pseudo-divine and not just any pseudo-divine but the strongest of the bunch. Therefore Black was certainly being affected! He was feeling! He was experiencing the passive charm of one of the strongest pseudo-divine for the first time in his life while still being a mortal himself.
Considering previously when he was actually intimate with his two wonderful maids — Luna and Freya. At that time his body still wasn't developed enough to feel the passive charm, his two maids exuded as one of the strongest pseudo-divine's.