orgasm question! help greatly appreciated;)

Dr
Okay so...
I know what an orgasm is, and I've had several. They're awesome :) but I never... cum? I'm wet, yes, but I never actually cum I just orgasm. Why? I heard 70% of woman are able to cum and I guess I'm not one of them :( is this even normal? What if it's a turn off for my man someday? I always hear "I want you to come for me." But I can't 😭😭😭