 [ Symptoms ] what is the difference between men is and women is heart attack symptoms [ Disease ] only your girlfriend could possibly answer this question but clearly she is having some issues associated with your sexual intimacy there can be many reasons and some may be deeply private for instance if she had a past experience that was troubling to her like a prior molestation she may have difficulty she could have some underlying fears of getting pregnant getting an std or she may be just frightened about sex if possible she may benefit from discussing this with a counselor or you can try talking with her i would suggest that you be very gentle and understanding and not push her to be more sexually involved than she is comfortable doing back off for a while and allow her more time go slow