All Apologies

So, I had a tech guy at my desk today to fix something on my computer and he was making fun of me for having a picture of a Pug (Fitz) as my wallpaper by saying, "nice kitty". So I start to talk about how I used to live in NYC and didn't want to have a big dog in a small apartment, blah blah blah. And then I stopped myself. I mean, WTF? Here I am defending my decision to own a certain kind of dog to some total stranger ASS (who was wearing far too much stinky cologne, by the way). Why do I feel the need to do that (about everything), why? And it's not just about the dog, I am forever apologizing about myself to people. I've got to stop that shit.