After 40 years of being straight, how could I now find myself interested in people of the same sex? I have had a few same sex encounters of my own doing.
How can I be interested in the same sex after nearly 40 years of being straight?
That's a loaded question, but to answer with a short answer, I'd say, it's because you are. Get in with someone to explore more of that why and what you want to do with where you are now. Hope that helps!