Dog Grief
Although dogs don’t cry as humans do, they do show real grief. When dogs are sad, instead of shedding tears, they’ll show their sadness by whining, folding their ears back, crouching, or refusing to make eye contact.
They’ll also look like they lack confidence. And if a dog is whining, he’s telling you that he feels unsafe and is looking to you for assurance. Cesur was displaying most of the above behaviors. It was obvious he was in mourning.