How do you cope?

I went back to work last Tuesday and the first few days went by so fast that I didn't have time to be sad. Now work is getting back to a normal pace and... I'm sad. I miss my goober so much it hurts. I know I have to work, and that it's the best decision for my family, but my goodness, the guilt and sadness I am feeling over this lately is ridiculous.

Does it get better?