One of my cats way back literally pined to death after his two siblings had died. They were all so close. There was nothing I could do. He sat on the same chair, just walked to the litter tray and drank some water. I brought in kittens.. tried everything. The day he died he literally was smiling, and that is how I remember him. Until then I never knew that could happen. Hoping it eases for you. Just love and hold .