What to do when you are almost always in the mood?

So, i am for one year in marriage and during this time I am almost always the initiator of the sex. My husband refused me a lot of times and i felt realy bad besause of that. I thought the problem was in me but he assures me it's not like that. And in the end, it seems that he just doesn't need sex so often while i do.

But when it happens that I'm not in the mood and he is, I still agree to sex because I want to please him. While he will not do it when the situation is in reverse, and because of this, I'm frustrated. I even made it clear to him, He knows that sex is very important for me.

Does anyone have similar experiences?