I think the range of this is pretty individualized. But I wouldn't say you're doing anything 'wrong' per say, Christina.
I'm another one who talks TO my dogs conversationally ALL the time.
Now I've got one little one (my geriatric Miss Kee) who has been with us nearly 2 years now and she's still in her own little world and really doesn't respond much to conversation.
But then I'll admit -- I try REALLY hard to get into their heads. I try to read mood and intent all the time and work it into what 'we' talk about.
Great example - we have a 'visitor' this weekend. We're sitting for my boss's dog for the weekend. Laddy's a bright boy -- VERY much so. He was trained as a CCI dog (Canine Companions for Independence) but failed his last cut and my boss adopted him. But they interact with him very differently than we do and it's been interesting to watch him watch US this weekend.
Billy is flat out miserable. He can't 'object' to Laddy -- he knows, first off, I'm not going to allow ANY "unpleasantness" at all. Laddy knows Billy's the male alpha and he doesn't try in any way to punch Billy's buttons. I've been careful to make sure Billy gets attention. But ... dang it all Mom HE DOESN'T LIVE HERE!!!!
Luna, on the other paw, is IN LOVEEEEEEEEEEEEE. Laddy likes to run and 'play' which is something Billy does far to little of (in Luna's estimation).
It's simply that for ME, the enhanced communication is just a byproduct of how I deal with my dogs.
And interestingly, Laddy's learned a lot this weekend. He was pretty freaked Thursday nite - he came with me willingly (he's never "been away from home" before since they adopted him -- never been kennelled or in daycare, nor even at the vet's overnight) but he was WORRIED.
But I told him before we left "his house" Friday night "You'll only be with me three beddytimes" (showing fingers). We've counted them down day by day and it has calmed him significantly -- he's not ready for 3rd grade math/arithmetic .. but he's gotten a lot of comfort from the concept that this is *temporary* and his people will be back tonight.
It's a more sophisticated concept -- reducing worry by expressing something that will happen IN THE FUTURE.
But much of it simply reflects what you want our of your relationship with your dog.