my boyfriend leaves me unsatisfied 😩

I love sex. Like I really love sex and I could have it every day, even two, three times a day. Now I understand that that isn't always possible, but my boyfriend leaves me unsatisfied, often. We don't have sex often enough, and when we do even though the sex is great, I'm left unsatified. I've told him this and he just dismisses me... anyone else deal, or have dealt with this?? Any advice?