How do I get my partner to initiate?

I (40F) have been with my partner (39M) for over 20 years. As life goes- work, kids, responsibilities, etc, our intimate life ebbs and flows.

We’re in a good place now where we’re on the same page about intimacy. However, he will not initiate. As I reflect, I think the majority of our relationship, I’ve always initiated. I don’t want to always be the one to get things going. I’m at a place in my life where it’s feeling like “my job”/another responsibility, you know? The thought of me getting the ball rolling gives me so much ick, now.

I’ve talked to him about this many times. He always says he’ll try to initiate more. He does once and then falls off. I’m at the point where I’m frustrated, and a little resentful that I don’t even want to be intimate with him, anymore.

Where do I go from here?