Did he shower him with phermones repetadly knowing that there is a posspility it affect hi...

i don't think so., for my perspective ian just want a fuck buddy who is not an omega coz he doesn't want any string attached, correct me if I'm wrong,

(￣∇￣")

But its a sign of possivness when the alphas leave their phermon lingers on their mates. As to "Already taken" and this is not a do of just a fuckbuddys

Yes. He didn't want to have a pheromone-fueled relationship. So I suppose he's all mad at Noah for binding him....