10 Rules for Marriage: A Therapist’s Honest Verdict

Why Love is not Enough in Marriage

A relationship therapist’s ten rules for a marriage that lasts. Why love alone is not enough, and the marital code that separates the couples who thrive from the ones who fall apart.

Laura How is a UK relationship therapist specialising in sexless marriage and female sexual desire in long-term relationships.

First, a quick disclaimer: This article is for marriages that have become mundane or cold, not abusive or coercive. If yours is genuinely unsafe, none of this advice applies. That is a different conversation, and one I have covered in my emotional safety article.

A bad marriage is genuinely terrible for you. By almost every measure, your health, your stress, how long you live, you are better off single than stuck in a miserable marriage. A good marriage does the opposite. People in happy, loving, sexually connected marriages tend to be happier, live longer, cope with stress better, and raise more secure children. So what actually separates the marriages that thrive from the ones that slowly come apart? After years of working with couples as a relationship therapist, I can tell you it isn’t luck, and it isn’t even love. Love is not enough. What lasts is a set of rules two people choose to live by. I call it a marital code, and these are my top ten.

1. Make Your Marriage the Number One Priority

Your marriage must be your top priority. Above the kids, above work, above friends and hobbies, all of it.

That doesn’t mean you stop being an individual, or that you stop caring about the other parts of your life. But marriage is an interdependent relationship, and almost every decision you make affects your spouse. The sex you have, the money you spend, the drink you pour, the lies you tell, none of it is a purely individual choice any more.

Think of it as a voluntary covenant. You both give up a little of your freedom for the security of the union, even when you don’t feel like it. And what you create in return is a partnership that is stronger than the sum of its parts. A team, more resilient than either of you could ever be alone.

So keep everything else at a respectful distance. The work, the screens, the in-laws, even the children. They come close when they need to, and then you gently move them back when they don’t.

2. Tell the Truth, Especially When You Don’t Want To

A marriage has to be a place where reality is allowed to exist. You have to be able to say difficult things, and just as importantly, to hear them.

That means speaking your mind, and letting your spouse speak theirs. No elephants in the room. No conversations off limits. Every concern, suspicion or worry is up for discussion, always.

It means no secrets, no hidden shame, no part of yourself kept in the dark from the other. True intimacy isn’t possible if either of you is censoring your thoughts or feelings, so you have to make it safe for each other to be honest. Safe to say the hard thing, and safe to hear it.

You should know all of each other. The good, the bad, and the ugly.

3. Be Your Spouse’s Best Critic and Biggest Fan

Marriage is the ultimate personal growth machine.

As long as you are following rule two, you will come to know each other deeply, and as importantly, yourself. You will see things in your spouse they can’t see in themselves, and they will see things in you. And when one of you starts to slip, the loving thing to do is to hold up a mirror.

Not with contempt, but with curiosity and concern, the way you would want them to do for you. Something like, “I’ve noticed you seem withdrawn lately, and I’m worried. Can we talk?” You are allowed to do this, because the marriage belongs to both of you.

But it only works if it’s balanced. If most of what passes between you is warmth and pride, “I’m so proud of you, you’re doing brilliantly”, then the occasional hard truth can be heard, because it lands in a relationship that is mostly positive.

It takes a strong, flexible ego to take feedback from the person who knows you best. But that is where you get stronger, as individuals and as a couple.

4. Keep Having Sex

I hear this one all the time. “Sex is a natural byproduct of a happy marriage.”

No, it isn’t. Not for many couples. Not once those early years pass, the kids arrive, and the hormones shift.

Once that biological heat fades, and for most couples it will, sex has to become intentional. It is too important to neglect, but going into it with a resentful attitude only makes it miserable for both of you.

So you have to get to the place where your internal green light is on. Where you have made your peace with sex the way you have made your peace with exercise. You don’t wait for the urge to work out. You go because it is part of staying well, and you almost always feel better for having gone. Sex in a long marriage is exactly the same.

And if you genuinely don’t want it, work out why, because it is almost always pointing at something underneath. Either something in you, or something in the marriage. Address that as a priority. But never give up on sex.

5. Protect Your Marriage Like You Protect Your Children

Your marriage is your priority. You are dedicated to truth. You are a team, and you are enjoying a committed sex life. This is something worth defending.

So protect it. From anyone, or anything, that threatens it.

This isn’t about rampant insecurity. It is about not being careless, and not being stupid. It means no candlelit dinners with colleagues. No following hot girls on Instagram. No porn. No cosy one-to-one friendships with members of the opposite sex, in any context, ever.

And it isn’t only about other people. It means no addictions, no overspending, no poor health choices. Anything that diminishes you, diminishes the marriage too.

The principle is simple. Anything that threatens your integrity as a person, your spouse’s sense of safety, or the security of the marriage itself, is off limits.

6. Do Your Own Work

You cannot build a good marriage if you aren’t willing to do your own psychological work. It is honestly a bit ridiculous to think you can.

You have to know and understand yourself. Your childhood, your patterns, your attachment style. Who you are, and why you feel and react the way you do. Most of us are carrying some old wound, or some way of coping, that we picked up long before we ever met our partner. And if we don’t understand it, we end up making them pay for it.

This is deep, lifelong work, and for most people it means getting some help with it at some point, whether that is therapy, honest friendships, or good old introspection as a bare minimum.

So much conflict in marriage is caused by simple ego defence. When you understand your own patterns, you stop being so reactive with your spouse. And when you understand theirs, it gets very hard to stay angry, because you understand where their reactions actually come from.

Work on yourself, both of you, and bring the best version of you that you can to the marriage.

7. Stay Attractive and Don’t Be Boring

What did the honeymoon-phase version of you look like? Attractive enough for them to marry you, clearly.

Well, one of your jobs in marriage is to stay that way. To remain attractive to your spouse.

And I don’t mean just physically, although that matters too. I mean a person who is really living. At the edge of themselves, interested in the world, fun to be around, kind, generous and growing. Someone your spouse wants to keep getting to know, day after day.

Because you never get bored of a person who keeps changing. Someone who is always learning something, trying something, developing themselves. Every day they show up as yesterday’s person, plus yesterday’s experience. You can’t sit watching TV all day, learning nothing, becoming nothing new, and expect to keep someone fascinated by you for forty years.

You want to have something new to say at the dinner table. A vision for the future, a plan, or a fresh idea. A sense that there is always more of you to discover.

8. Drop the Negativity

One of the most toxic dynamics I see in therapy is a deeply ingrained, habitual pattern of negativity.

Negativity is death by a thousand cuts in a marriage. The “if it wasn’t for you, I’d be happy” sentiment, dripped out day after day.

Nobody wants to feel like a disappointment. The sole cause of another person’s misery.

And yet I see couples so stuck in this pattern that it almost looks like they are enjoying it. The victim and the perpetrator. One cast as the failure, the other standing over them, reminding them in every interaction just how disappointing they are. Yet nothing changes, year after year after year.

The truth is that nobody has a gun to your head. If you genuinely believe you are so hard done by, so trapped, so let down, then leave. I honestly think it is kinder to walk away than to punish someone for being who they are for forty years.

As I said in rule two, you have to be able to say the hard things. But that can’t be all there is. It has to be balanced, many times over, with warmth, gratitude and generosity. Give freely, forgive quickly, and make positive regard the default.

Get that balance right, and the negativity dies.

9. Tend It Like a Garden

A marriage is a lot like a garden. It is a shared space, and you are both responsible for tending it.

If you both bring intention and effort to that space, it will flourish. So you must each deliberately contribute to its health, so that it feels alive, vibrant and fulfilling for both of you.

And sometimes that means standing back and looking at the whole thing objectively. How is it doing? What does it need? What is working, and what isn’t? What could we do with more of, and less of? What is our shared vision for the future of this place?

That kind of attention doesn’t happen by magic, sadly. It means conscious, deliberate action. It means checking in, weekly I would suggest, and working as a team.

Because you both live here. And you both have a responsibility to make it a beautiful place to be.

10. Make Great Sex One of the Projects of Your Life

Another rule about sex? Yes. In fact, I’d say only two is conservative.

Rule four was about getting your steps in. Keeping it regular, keeping it positive, staying healthy. This one is about signing up for the Ironman.

You can build a business, get fit, or play in a band with anyone. But you only have one sex partner. One. You have given up all others, by choice, for this single person. So why do it half-heartedly?

Make it a project. And I mean that literally. How exactly is a whole subject of its own, and it’s where this series goes next.

So that is my top ten. If you haven’t been living by these, don’t panic. It is never too late to start.

Download Your 10 Rules for Marriahe

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If you find you need some support along the way, you are welcome to reach out to me or my team.

And in the meantime, to yourselves and to others, tell the truth.

Recommended Reading About Intimacy in Marriage