Dear Crazygran, I didn't believe in love at first sight until I met my husband, neither did he, and we weren't spring chickens either as our 50th birthdays were in sight.
We are still happily married to each other 17 years later, so go for it, and I hope you will be just as lucky as we feel we are.
And do take the good advice both about your best undies and about ringing him, if he doesn't ring you. These days, I don't think you need to wait for him, after all he may be considering the false teeth he hoped you didn't notice he had, or some such thing and be hanging back.
If I were you, and you do decide to ring him, I would find something you could suggest he might like to accompany you to; a talk at the local library, an art exhibition, or whatever else you can find.