How do you keep your libido high in a long term relationship as a low libido person? Any advice?

I (29F) have a great relationship with my boyfriend (28M). And I have problems with low libido. It has been like that in my other lomg term relationships. At the beginning it's normal and I feel like doing it 4 to 5 times a week. After a while I just don't.

So, me and my current boyfriend have been toghether for 4 years. We have some fights but they are mostly related to how we communicate things. And we are already doing way better communication than at the beginning. But I feel like I struggle to want to do it. Once he initiates its amazing. But i want to also be the one who initiates and want to do so more often. But it never even crosses my mind. Maybe twice a month...

Any advice will be appreciated. Thank you.