Why

His pheromones are too strong. That’s why he never got with omegas, hurt his ex, and used to use suppressants cuz it makes him lose his mind a bit

Oh, that's true... Thanks

Cuz Hayden releases his pheromones which is strong and brett is also an alpha so his body rejects his pheromones which is biologically wrong since those pheromones are actually made for omegas but brett enjoys it this way like having brain cracks you seen in some pannels. Which is actually painful i don't know how Brett as strong as this enjoys this.

Thanks