" Relationships can open and close or have varying degrees and kinds of openness as circumstances demand. In the context of a designer relationship, decisions are made mutually, consciously, and deliberately. Agreements are discussed, arrived at, and honored. And when agreements no longer serve, they can be re-crafted. "

― Mark A. Michaels , Designer Relationships: A Guide to Happy Monogamy, Positive Polyamory, and Optimistic Open Relationships