I think that the extent of the husband’s subservient role is different in every cuckold marriage. In our case, we have a roughly equal relationship outside the sexual aspect of our marriage.
We ended up in this place through natural evolution, although in retrospect I think that my husband and I both wanted it and gradually moved towards it. Some years after getting married, I began having affairs. When my husband discovered them, I agreed to stop but I never did. Our marriage almost ended at that time. With counseling and reflection, we decided to have an open marriage. We started with threesomes and swinging, but gradually moved to hotwifing and now cuckolding. In fact, my husband is now permanently caged and we no longer have sex with each other. We both realize that we are happy in this situation.