To lose them both so close together must be incredibly hard. Have you heard the Rainbow Bridge story? It is an old Norse myth that might bring you some comfort to read it now, and picture them there, together.

There's a version of it here: http://www.rainbowbridge.org/

You're in our prayers. Buddy was obviously your "heart dog," and will always be there, curled up in a corner of your heart, for the times you most need him.