Fighting over sex. So tired of it!!

Me and my husband have very different sex drives, his is waaay higher than mine and he'd want to have sex everyday, sometimes 2-3 times a day. I obviously dont want to have sex that much and I'd be okay with every other day or every 2 days. Most of the time when he initiates I never turn him down. I honestly only turn him down like 10% of the time. The other times I usually give in because I know he needs it more and I think sex is an important part of the relationship. But lately, such as today, he has been acting resentful towards me because we haven't had sex in 2 DAYS. Like 2 freaking days. And he never even tried to initiate! So now I'm upset because it's like how can you be mad at me when you didnt even try to initiate?? And I'm soo freaking tired of him being upset if we miss a day without having sex. Its getting so old especially since I do try and give in to him 90% of the time! I usually never say no and even the other day I didnt want to but I still did. Like what more does he expect if I'm already doing it sometimes when I dont even want to? Theres really not much more I can do. But now were fighting and I dont know what to do. Someone please help!!