What is It?

What is it about you that makes me say things that I would never say to anyone else? I ask you questions the way a four-year-old would ask their parents -- unfiltered, unthinking, with no sense of shame. What is it about you that breaks down all of my social graces, my sense of  decorum, my attempts at being diplomatic and polite? Some of things I've told you are dangerous, I know.  What is it about you that keeps you loyal, that keeps you coming back even when I've been cruel, even when I'm at my worst?