I am sorry, Speed. I agree with the others who say that he's dealing with his grief in a different way. When my husband and I suffered a tragedy many years ago, I couldn't believe that he wanted to move on as if nothing had happened, while I couldn't get out of bed for a week, and after that I got so angry that the world was going on while I was suffering.
I hope he will take some time at some point to understand the meaning of clinical depression. Maybe you can coax him to go with you to one of your appts., as someone else suggested.
Keep working on yourself, Speed!
Bluemountains