Anna, I hear you!! We have only 1 out of our three boys living near us. It's not easy but we do adjust.
I like the old days where all families lived in the same town. :D Those days are long gone!
The bottom line is my kids are happy and are doing things they went to college for. Sometimes I have to remind myself that they are living THEIR lives, just as I am living mine.
Hope this helps- and here's a HUG
Sue