A, I'm so sorry about your situation. Once the dust has settled, you will be able to think clearly and decide where you would like to retire to. Give yourself plenty of time to heal. It doesn't happen over a few days.
As for your h's guilt, it is his to own and do not buy into it. He's had many opportunities to do the right thing, but he hasn't.
Look to the future and know that no matter what happens along the way, you will be okay. You are a survivor!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.