No, I doubt it. It sounds like he simply likes that neighbour.
Really, he sounds like a very normal dog who just needs training. What training have you done with him? Did anybody go to classes with him? Dogs don't intuitively know what's right and what's wrong. They have to be taught. And how much exercise does he get? At that age he is at the peak of his exercise needs. A walk around the block on a leash probably isn't enough for him. Does he get to run and play off leash? Does he have a doggy friend to play with?
"Hyper" usually is just a way to describe a dog who does not get enough exercise and training. Granted, some dogs need more of both than others.