Mahogany,
I see nothing in scripture about, "Though shalt not date a woman who looks like thine Grandma 60 years ago." Seems like a kind compliment to the beauty of your Grandmother actually.
Be careful on what you do on dates though... there is stuff in the Bible on that
If this ends in you doing many hours of therapy in future years though, I will send you an apology. If that happens, can me and your Grandma come visit you in your Happy Place?