I think a lot of this has to do with covid, being isolated and then when one goes out it’s not the same with masks and staying 6 feet apart you can’t even be social with someone. I am 73 and my husband is 82 and we have no children so I totally understand how you feel. My best friend and family is in the UK and my
Other friend is in New Mexico. I joined the gym before covid and met someone to walk with but even though I am married I still get really lonely at times. I wonder if you have Nextdoor on your computer in your area, it’s a place to ask for someone say to walk in your area or if there ar knitting classes etc. maybe you could join a church if you haven’t, they always seem to help their congregation. I get depressed occasionally which if you knew me before covid you would never have thought it possible. When I feel out of sorts I look around at what I have nice house, gardening, husband and realize how lucky I really am. Good luck and happy 2022