Anyone deal with polygamy and marriage?

When I first met my husband, he knew I was a polygamist, he knew I wanted to have other partners.

Well, 7 years later, I have been only with him and now I feel very unsatisfied in our physical relationship. There are things that I enjoy that he doesn't like in that reguard.

The issue has caused a strain on our marriage and he has admitted that when we were dating he never took my needs or what I told him seriously, but now what?

I feel like I am the only person who makes sacrifices in our marriaged and I am the only one who is not being satified sexually.

Has anyone else been through this? What did you do?