Can’t orgasm every time - always been like that and boyfriend thinks I’m not satisfied.

My boyfriend gets so upset if I don’t orgasm every time we have sex. It’s always been like that for me, but he swears it’s him, and I tried explaining to him that 70 percent of women don’t get off every time. He said he got every female off every time. He’s not innocent by far, if you know what I’m saying. Guaranteed those females were faking it. And now he’s always telling me I’m not satisfied, but I am and I love him so much. But really I feel he’s not satisfied. I feel hopeless because that’s how I always been. Some females never even got off before. Woman please help me. He doesn’t believe any scientific information I show him.