Okay, this is silly, but I actually asked my brother if you looked Mexican, just to make sure my perception was really incorrect, and he said you're "not caucausian."
So, just to let you know, you're totally Mexican. I figured it out, 'n stuff. It's not like your last name or grandparents speaking spanish or making tortillas from scratch had anything to do with it.
From now on you are my latino lover, and I am your fraulein.
Sorry for doubting your Mexican-ness. I blame living in a mostly integrated and accepting society that doesn't distinguish between races. Or maybe poor eyesight. What colour is your hair again?
DO I KNOW YOU??? I have the feeling we've met before.