Why is it those who experience the death of a companion animal are at an increased risk for experiencing a Complicated Grief Response? ​ So what exactly is a Complicated Grief Response? Clinically speaking, Complicated Grief Response (CGR) is a persistent and on-going form of intense grief in which maladaptive thoughts and dysfunctional behaviors are present along with continued yearning, longing, sadness and preoccupation with thoughts and memories of the deceased that conti