Your arguments aren't going anywhere because they are lies intended to skirt around undeniable facts, and they are so obvious only the most retarded people might even consider believing them.
This is a harem AVN. If you think an attractive single woman the MC gets friendly with isn't a love interest, you know neither the genre nor its audience. Heck, even married or related women aren't safe.
This argument will "go somewhere" the very second you overcome your denial and face reality.