I have a Shiba Inu and he's very much the same. If I say "look there's your friend Bella!" He goes nuts because that's his favorite friend to play with. He can even recognize the sound of their owner from multiple apartment buildings away. Not kidding at all. He'll go frantic begging to go outside and as soon as we're out he'll perk his ears, figure out the direction to go, and take off. And then after five or so mins heading that way he finds his best bud.