I love hearing (reading?) you talk about your family, especially your son. you seem like such a great mom and he sounds like a well-adjusted young man who's always going to have a pretty awesome family waiting for him, even if he is off doing his own thing.
Aww good to hear!! I think it's great that you joined the running club too.
My girlfriends and I were just talking about crying after our parents dropped us off at college. When I told my mom- she was shocked. Huge, exciting, emotional times for parents and kids alike!