Oh @honeybee. When I think of duality I am drawn to masculine and feminine traits and tendencies. I see you as someone who is very masculine. You forcefully bring home your points and don't stand for crap.

Based on the comments I have seen to your posts, your gf is far more feminine in nature. She offers logic in a kinder and somewhat more empathetic and compromising way.

I think the two of you complement each other beautifully, the duality of your approaches adds great value to your content as a whole.