i know what you feel like with you worrying about him being alone when he passed i think about the same thing. my sister passed away in a car accident and it hurts to think she was was alone and scared.
Im so sorry your going through all this pain .
I lost my my brother over 4 years ago and his wife died 14 years ago.
Your not alone feel free to contact me any time I started this group because I felt alone in my pain so all of us here are here for you:$