I know a Buster. Not my dog, but I love him just the same.
When my beloved, life-saving dog died, a wonderful person on a pet loss board wrote that the special ones always come back. One sleepless night I felt the familiar footsteps on my bed, and the pressure of a little body next to mine. It happened.
As empty as your arms are now, and as big the hole in your heart, I believe totally that Buster will come to you at some point. And after that all too brief reconnect, you will feel comforted.
Buster can romp with my dogs at the Bridge any time.
hugs to you