But grief isn't a competition. No one can say that the pain they feel losing X is always greater/less than the pain someone else would feel losing Y.
I wasn't too broken up when any of my grandparents died. I liked them well enough, but they were old and death is what eventually happens to everybody and it wasn't a particularly emotional turn of events for me. However, I would never think that my own feelings should become the "benchmark of grief" for everyone else who loses a grandparent. I understand that someone else may feel that loss much more profoundly for any number of reasons. By the same token, I've experienced a few pet losses that have absolutely crushed me and those losses weighed much heavier on me. How deeply one grieves has little to do with the title of the relationship (grandparent, cousin, dog) and everything to do with the actual bond felt within that relationship.