I agree with Katrina and ask her out to a place where you would take a woman your age. Movies is great, because after the movie, there is plenty of material for a good conversation. You have to keep your eyes open regarding any clues she may give you about how she feels about you. Follow up the movie date with an outing to a park, hiking, lake or somewhere in daylight. This will boost her confidence.
Us older women sometimes feel less confident than we should.
You know it's love when the pain of being apart is greater than the pain of being together.