My fiance has lower pelvic pain, faking to avoid sex? any help?

What?: Are you asking if she faking? Assume she is legit until proven otherwise. She needs an appointment with her ob/gyn.

Seek specialist: Pelvic pain is a real and common problem. My best advise is to seek help from a gynecologist specializing in the treatment of pelvic pain. You may have to consult a university hospital to find such a highly specialized physician.