Why don’t I orgasm with my partner?

Ces

I do like him. He’s the person I feel that has made me the wettest. However, I could never orgasm with him. I can orgasm if I use my vibrator for 7-15 minutes. Even when I use my vibrator with him I don’t reach orgasm.

Help… any of you ladies are like this? Any tips? Should I use arousal gel for my clit? I don’t want to make him feel like he’s inadequate or something.