Cranky, I bet it will be great fun discovering your best friend right there next to you after all these years.
My heart goes out to Yen and others who have not expereinced the shared joys (and pain) that children bring.
My oldest left for her second year of college. I still have three (great!) kids left at home. It's hard for me to imagine but in less than 10 years we (Lord willing) will be back to "the two of us" again. I am really not looking forward to all that deafening quietness.