ve lost a friend and companion, whether
that friend is human or dog.
You will feel very very
sad. And go over all the things
you think
you did wrong, or think you should have done, etc.
But let yourself grieve. It's natural. You're right, to take a few days to let out the pain and grief, and be on your own, or do whatever you need to do. Maybe you could make his grave beautiful with crystals or flowers, or carve a headstone for him...