I think I understand. I doubt he will even be forgotten.
It has been a year for me as well [my sweet Vive cat]. I already can feel a small lifting of my spirits. Sure, some times I get morose when I remember but I try not to dwell on my sorrow. It is my mind wandering & not productively. We had wonderful times. We were lucky. Nothing lasts so enjoy and remember to remember the joy when you get sad.
That was a lovely photo.