Report this to the police, or give your daughter the option. She is looking after and taking care of you, but she has to have some psychological issues going on after something like that. You and her both need to seek therapy for your own good. If she's getting in trouble, there is underlying issue there.

This isn't easy for anyone, but sometimes we see people for what we want to see them to the extent that we can't see anything but the good or choose to believe anything but the good. I know you loved him, but I think you are more mourning the life you had with him. You did it once with his help, now you have a model to build on to recreate it with your daughters or another relationship.

You mentioned you are religious. Go to a church with a high population of singles in your age group to find friends and support. Maybe even a date when you are ready.