When you say used to have heart to heart talks, how long ago was that? What new has happened to her since then?
It looks to me that you are a very family orientated women, I'm not say its bad, is your family all like that?
Coz it could be maybe since your daughter had her first child she assumes her family are now her husband, kids and her immediate family only.
Why do you think she would be upset if you sold your house and moved to a new community?
I don't think you are expecting too much, but we have only heard your side of the story.
She shouldn't be struggling for her independence she should be independent by now.
Why was it stressful when she had her first child? Im not a mum but I can just imagine that it would be in itself a stressful time.