I don't orgasm during sex.

For the longest time, I didn't care that no guy I slept with could make me cum. I figure that the pain from endometriosis has always made it implausible for me to orgasm through pentrative sex. With my current partner, however, I'm starting to care that the only time I orgasm is at home with my vibrator. I want him to share that experience with me, but nothing seems to work, and he isn't super keen on bringing the vibrator into our shared sex life (he repeatedly assures me he has no problem with me using it, though.)