Never let anyone define your relationship

Short and sweet: as long as you are not having a romantic relationship with a minor or animal, do not let anyone define it. Do not even let anyone define your marriage. As long as you are following biblical principles, such as being faithful and honoring your spouse, don't worry about the personal choices which are disguised as your cultural norms and taboos. Some examples are long-distance relationships, marriages where the couple maintains separate homes, childless-by-choice marriages, marriages in which the couple rents homes (instead of doing the "American Thing" and owning a home), and not having joint bank accounts.

Whatever works for your relationship is what you should do. At the end of the day, *you* have to be satisfied with coming home to *your particular setup*. So don't listen to what people say you "should" do.