Craig, hi
I am so sorry to hear about the situation you and your wife find yourselves in, as you have heard it is not uncommon.
We have talked openly about hubby's dementia for a year or so and despite telephoning, visiting, emailing and inviting friends and family to visit, away on holiday and to social events here we have had a very mixed response. The close family seem to want only to know when things have got back to 'normal' and everything is sorted out, there are exceptions though and they are to be treasured. Friends, well we have found that new friends are wonderful and supportive but anyone who knew hubby before has gone, become invisible.
Deep breath and carry on meeting as many people as you can and be open and welcoming while inviting others on our journey but not being surprised if they leave to alone.
Take care of yourself and keep posting, this is a wonderfu site for all those of us who need friends who understand, Jo