Great observation. Bestiality and witches, both of which Oz and Willow seemed to grow unhealthily addicted to as they grew apart. I liked the metaphor for College being experimentation period, but they took it too far. I didn't buy the Oz/Veruca thing for one moment. Oz might lose himself when the wolf takes over, but he was already starting to sense her when they first caught sight of each other. Marti Noxon depicted it was more of a sexual attraction, which is what I hated. Oz is better than that.

It definitely drew them together. Willow noticed how Tara was more involved with magic at the Club than the other girls were. That outsider feeling drew them close.