Sexual attraction possibly not there

Me and my boyfriend have been together for a little over 8 months, I’m 27 and he’s 30. He’s never been very sexually active, we’re physically attracted to each other, hell we had sex on our first date. 🤦🏼‍♀️ we have sex frequent I guess?, things are great between me and him, we have the same beliefs, goals and morals although our sexual chemistry is NOT all the way there!

Maybe I’m wrong, maybe happy couples don’t have sex often… we have it maybe 3 times a week, IF I’m lucky. At least once-twice a week we have sex, but I still wanna have more.. I’m very physically attracted to him, he tells me he is to me as well, it’s just he doesn’t think relationships should center around sex. Well, no duh. 🙄 but I feel that if I’m in the mood for sex more than he is he should at least try to help satisfy me, yeah?? 🤷🏼‍♀️

So question is- I’m here at his place for the next week and a half. We had sex the past couple days, but I would like to be sexual with him again… not even have full on sex, just love each other and satisfy each other, but he makes me feel like I’m immature for wanting that?

I’m horny and I know he’s most likely going to “turn me down” in a sense.

Should I just tell him I want some time to myself and masturbate or y’all think that’ll cause more damage than good for him and I?

I don’t want to put any tension between me and him, but what am I supposed to do when I’m horny and he doesn’t really care nor does anything about it!?!!