Just curious as to what breed it was. We have Ragdoll cats who are said to be the most dog-like (though they're still predators). My wife went to visit her brother and nephew and the cats (one more than the other) have been moping in her absence, to the point of not coming for their regular treats.
She's healthy enough mentally not to be mourning her dog in perpetuity. Given her husband and her a lot more freedom to travel. This COVID stretch since earlier this year is about 3-4x longer than any period they've been in country since the dog passed!We don't keep our dog's ashes (I don't want mine kept either) - but it is the memories that you have and make you laugh. I know that your sister despite her Chow being gone longer than he was alive, will feel his loss forever.
Cream rises to the top. So does scum.