I would bang her if possible and when strong need passes, I would let her go. I experienced something similar, but she was 35. At beginning I really desired her, we started to meet reguraly (more than year) and after some time she started to have strong feelings for me. I had to end it.
"Love your life, perfect your life, beautify all things in your life. Seek to make your life long and its purpose in the service of your people."