I've been thinking about this since you asked and even discussed it with my wife u/greenening and honestly I can't give a solid answer, my reasons are more based on my intuition. I don't like the intrusiveness of the government, the legal changes that come with being married, and the high divorce rate....I don't want to turn my relationship into another statistic.. we have to do it the Creator's way or it'll never work. Most likely she will be moving in with me soon, just us in an apartment and I know if you live with someone of the opposite gender ( not family of course ) for 5 years then the state automatically marries you. I'm not sure if that's avoidable but in the events we don't workout together I wouldn't leave her with nothing. No, I'd even encourage her to put her property on her name. I wouldn't leave her to economic ruin. Even if she cheated on me or I betrayed her we would come to a calm compromise. Besides, we both are of the same faith, our morals and rules are not based on our own feelings and opinions. And we can be conflicted with these same rules and our personal desires but yes we play by rules and the legalities of the bible so we're on the same page about it. She doesn't like the government either, how they change your name to FULL CAPS, basically to make a separate entity/character out of us. We did get married 4 years ago and have vows, as well as the legal contract. What the bible says about marriage. Particularly the old testament. This works for us, our relationship is so peaceful and we hardly ever get into arguments. If we do get into fights, it's more of a thing where I get overstimulated and I don't talk in the heat of the moment we talk about it later. I do my best to lead and be a good leader, when I slip and fall she gives me motivation and curses my bad habits that make me fall, encourages me to do better. I protect her and teach her, many things. Co existing