Mismatched Libido

Hi guys. Long time lurker here. I have a situation I need advice on. I 29 M have been with my partner 26M for 5 years now I do love him and we enjoy eachother very much. We are married legally but having a wedding coming up. I am fulfilled with him on most levels except for sexually. When we do have sex it is fun but it feels like every time I initiate it I am rejected. Maybe 9/10 times. To the point where I stop initiating because my ego has taken a hit. The issue is though I feel the need to go with it any time he initiates (even if I’m not in the mood) because I’m not sure how long I will have to wait until he is in the mood again usually 1-3 weeks in between. I have a high libido and would love to be having sex 2-3 times a week. He seems to build it up in his head as this big effort thing when it really doesn’t have to be. Do you guys have any advice on how to handle this. I know in previous relationships he has been more sexual and when we met we had sex frequently. It almost feels like a bait and switch and it is causing resentment on my end of the relationship.