I remember when your friend died. KB had a very tough time accepting the death, too.
I have never had a dog, but one of these days I hope to have one of man's best friends in my home. I have had cats, and one I had for many years. She was very special, and I think about her all the time.
Keep busy, share your thoughts like you are doing now, and you will survive this loss.
Dig, do you still have your dog?