My sons are close to me, though not geographically! I have never been the smothering kind of mum. My DiLs are the daughters I never had, are kind and caring and always hospitable to me, but again, I have to acknowledge that they have their own lives and careers and I am sure that it would have been just the same if I'd really had a daughter. I can also have a good time with grown-up GD, but she also has a life to live. If it wasn't a harsh thing to do I might suggest that your daughter should 'get a life'. Ultimately we all have to do without our parents and we get on with it no matter how much we may miss them. However, I am inclined to agree that she must be suffering from some kind of mid-life crisis and/or depression. She does need help.