sort of know what you mean about the loss of a loved animal,i have lost many dogs to cruel illnesses i have not had a dog that lived till old age ,its been said that dogs give us unconditional love something humans find hard to do ,that's the reason for the great pain in loss.i think some of us are more sensitive to losses, its said that love does not know its depth till the hour of separation i know that to be true .if god's love is unconditional then losing that would also be unthinkable.i don't know why god does not intervene ,a book called 'why do bad things happen to good people' helped me a lot in this area .i find at times i get mad with god ,who wouldn't with some of the awful situations people find themselves in