I feel bad for you. You sound so down. Don't give up on meeting some one. Maybe join some clubs or activities connected with your church or house of worship. I have friends that volunteer in the churches food pantry and have meet some nice people. One friend of mine has a son with many health challenges in a wheelchair but has managed to get out and about and just recently announced his engagement.
On a another note , don't let the house temp. go below 55 because the pipes might freeze.
I hope in some small way I've helped...good luck.