BR and OL,
From a Mom that has now seen both children graduate from college. One is married(talk about tough!) and about to make me a first time Grana. Let me just say, to some degree you never stop having that empty nest sadness. i still leave my son's mail in the same spot on the stairs. I still have some of their stuff from birth to grown up packed away.
On the other hand. We are able to enjoy ourselves on so many more levels now. Mom's never let go of all those sweet memories. It will get better BR. Trust me. It will. My two are the best things I've ever done in my life. But, I'm so proud of the young adults they have become. It's awesome!
My daughter reminded me last week that I always told her, "give your babies roots and wings. The roots are easy. The wings are hard as hell. But in the end they'll be glad you did."
I know your daughter appreciates and respects the fact you are giving her wings. She will know one day at what price they came.