I think any dog owner here can recognize such loyalty. My dog, "Rose" is like that. Even when my DH and I drive to the tiny town 6 miles away to the grocery store, and he stays in the car with the two dogs, it is Rose who is watching for me to come back. She isn't a lap dog and doesn't really want to be hugged, but she IS loyal.
A few years ago when our cat brought a miniature Schnauzer to our front porch door, I recognized a LOYAL dog who had been dumped. She was dirty, underweight and scruffy but wanted love and attention. She was obedient and loving. She even sat in a (large dog's) crate with her food and water, quiet as a mouse, trying SO HARD to be good, while we ate dinner on the porch and my other two dogs sat at my feet. I just saw her as trip-able and possible coyote dinner, so I couldn't keep her. Had she been a big GS cross, she would have been MY 3rd dog.
I did find her a good home, but the stupid woman who said that the dog would have a "Forever Home"--that's as loathsome a phrase to me as a "heart" animal--almost didn't. If her 8yo daughter hadn't fallen in love with this dog she would have gone to a shelter. After two years they will keep the dog.
Some of the best dogs don't deserve their human owners.