I’ve always joked that marriage is a lot like sharing your house with someone… so you should choose that person wisely.

But in a lot of ways it can be that simple. It’s making an effort to understand the commitments and courtesies that your partner needs to share a life with you that separates a marriage from a love affair. It’s an intentional commingling of your lives with the intent of mutual benefit, sharing affection, and having the grace to allow one another small mistakes in the process.

If the people in question have an understanding, then I don’t think that legal status, civil or religious ceremonies, permanent cohabitation, or even monogamy are essential, as you’ll find relationships that remain stable despite lacking one or more of these things from time to time. But, entering into and honoring that commitment to each other is.