You know, ((((((Barbara)))))), I have a feeling that some of your ability to 'sense' and to 'feel out' people was stifled during your marriage -- just like mine was.
If these senses are starting to awaken again in you, that's good. My son has got a favorite 'thing' that he says to me WAY TOO OFTEN. I've got a hard head

He says just 'cause you make an agreement to do something NOW doesn't mean it's a lifetime commitment; you can always change your mind. Sort of think he might be talking to other Barbara's too
If your instincts are telling you to back off a little or to back up -- listen to them.
Going out to bingo or bowling -- out with someone in a public area -- there's nothing wrong with that. You're not signing a pre-nup.
Just enjoy being with him. Learn what you can while you're with him. Help him -- cause he certainly sounds like he needs your help during this time. But, don't give your heart yet until you're SURE.
BIG HUGS (and love).
Barb