It is always harder each time than the previous time.
My last was Sara, a golden colored Cocker spaniel we had adopted.
She could not breathe well enough. She could not eat or drink. She spent her last day panting.
I was lying on the floor with her, looking into her eyes as her soul left her. That moment made me die inside and left room for more grief.
Your loss causes me pain because I know how you must feel.