Is there something wrong with me?

I have never had an orgasms through penetration. ONLY if I play with myself while having sex. That’s the only way I can have an orgasm. And when I’m having sex, of course I feel pleasure but not as much as when I’m playing with myself once again. Why am I like this? Is anyone else like this? He’s tried to find my “g spot” and I just don’t feel the urge to cum. I CANT. It’s so frustrating that I always have to play with my vagina in order to cum.