Being happy when he’s unhappy

My husband wants me to have more sex than I want to. After what I’ve learned through SCS, I realize that this is his model, but I can’t help but think that I am the reason for his unhappiness—if I were just different, he’d be happier. Logic kicks in and I remember that I can’t make him happy. Only he can make himself happy, but when it comes to his desire to have a more abundant sexual life, I feel powerless.

I’ve given him the option to leave and be with someone who will fulfill that for him. He doesn’t need to stay with me if he’s unhappy. Clearly, he didn’t like that plan. But he also doesn’t like the idea of staying with me and me not changing.

I want us both to be happy in our relationship. How can I be happy even though he’s unhappy?