I don't think its very strange. Sure they have no idea what we're saying, and to them it mostly translates to "No," "Sit," "Food," and Here!," I guess we need someone to talk to, even if they don't necessarily talk back.

A while back, when we had a house dog, I would talk to it a lot when I was in my room with it. (It used to sleep in my room, go figure.) I would discuss how school sucked, and would celebrate with it when I beat a hard boss in a game. Dog's like "WTF?"

Then he got booted for all kinds of things: tearing things up, among other things. Now I feed them outside, among other dogs, and I say "Get back." While I try to feed him, among other things. Not quite the Axel "GET BACK!!!" but...

I didn't know people found it wierd. My moms talks to her cat, too, so I figured everyone did it... Huh. =/