INFP relationships

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she likes to talk, I know the topics of choice, and am (almost) equally interested in those; we happily talk across philosophy, psychology and arts related topics. I do that regularly, i know its good for us to voice thoughts, and have discussions. She is happy and content with a good natter, then gets on with her life. I dont know if im missing something about INFP types. I've only known 2 as close friends. I dont think she would agree to prof counselling.

You could take her to see something artistic like a play or gallery with a clear sexual component. Something that would be hard to discuss without having to be open about sexuality. It would also be potentially helpful of you were just direct with her. She may find satisfaction in being able to provide you with a more satisfying sex life