Dog doesn't stop crying when left at shelter

.This heartbreaking video was made at the dog shelter by the staff. The dog named AJ is lying on the bed and he is filled with personal grief, which makes him breathe heavily and trembling, and his eyes are full of tears and sadness. And all this from the fact that the owner brought AJ to the shelter and left here, not wanting to take care of him anymore. The clever dog felt this and realized that his owner had betrayed him and would never return to him. After that the dog could not stand it and cried