Deckman's advice is, I believe, exactly right. You can't prevent or delay grieving: it has to happen, and you really must give in to it. I made the error of trying to keep busy and distracted when I had a terrible loss, and all that did was repress what really had to come out. Give in to the awful sadness and let yourself cry -- tears honour the one you lost, and help ease the horrible ache, at least for a while.

Tears for the present ache, time for the permanent ache, which does become bearable, I promise.

And if you can, find someone willing to talk about the person you loved, talking helps to make the loss real.

I'm so sorry for your loss.