Green flags that matter more after 40

At 25, a green flag might have been a great smile, a steady job and a car that started on the first try. After 40, most of us have learned, sometimes the hard way, that the things that make a relationship work are quieter. They show up in how someone keeps a small promise, how they talk about the person they used to be married to, and what they do when you disagree about where to eat.

So if you're wondering what to look for this time, here's the short answer: character you can see in small moments. Chemistry still matters, and you'll know if it's there. But it tells you very little about what an ordinary Tuesday in year three would feel like. The seven green flags below do, and you can spot every one of them on a first or second date.

A note on the research first. Much of what we know about couples who last comes from the psychologist John Gottman and the Gottman Institute he co-founded. Couples therapists use his ideas widely, but the figures come mostly from the Institute's own studies of married couples. Treat them as the Institute's findings: useful, and still open to debate.

Why the list changes after 40

You've probably lived a long relationship from the inside. You know the early rush fades for everyone, and that what's left is how two people treat each other on ordinary days. You may also have children, a career, a home and routines you like, which means a new partner has to fit into a real life you've already built.

That changes the question. Being swept off your feet is lovely. Being with someone who's good company, keeps their word and makes hard days a little easier is what you'll still be glad of in five years.

Seven green flags, and what they look like on a date

1. Their words and actions match

On a date: they said they'd text on Thursday to confirm, and they did. They said they'd find somewhere quiet, and it's quiet. They arrive when they said they would.

These are tiny things, and that's the point. Consistency is easy to fake for one grand gesture and hard to fake across a month of small ones. Someone who's reliable about a dinner booking is more likely to be reliable when it matters. Our guide to red flags that look like romance covers the flip side: big promises and plans that keep falling through.

2. They talk about their ex without contempt

On a date: you ask what happened, and they give a short, fair answer. "We grew apart. We're decent co-parents now." There may be some sadness in it. There's no eye-rolling, and no story where the ex is a villain and they did nothing wrong.

This matters more than it seems. The Gottman Institute calls contempt, talking down to someone from a position of superiority, the biggest predictor of divorce in its work (Gottman Institute). How someone speaks about a person they've stopped loving is a preview of how they might speak about you on a bad day.

If the split is recent, a bit of hurt is normal. Watch for scorn. Sadness is fine.

3. They're kind to the server

On a date: they say thank you, make eye contact, stay patient when the order comes out wrong, and tip like a grown-up.

Every generation seems to agree on this one. In a survey of 4,000 daters aged 18 to 25 in the US, UK, Canada and Australia, run for the dating app Tinder, 54% named being rude to staff as their biggest ick (Tinder). If the youngest daters notice it, you certainly will. Someone who's charming to you and curt with the waiter is showing you how they treat people who can't do anything for them.

4. They ask about your life, and remember the answers

On a date: they ask a question, listen to the answer, and ask a follow-up. On the second date, they ask how your daughter's job interview went, because you mentioned it last time.

Gottman calls these small moments bids: a comment, a question, a sigh, a nod at something out of the window. You can turn toward a bid by responding, or away from it by letting it pass. In John Gottman's study of newlyweds, couples who were still married six years later had turned toward each other's bids 86% of the time, while couples who divorced averaged 33% (Gottman Institute). Those numbers come from the Institute's own research, reported on its own blog. The idea behind them is easy to believe anyway: people who notice you tend to keep noticing you.

5. They handle a small disagreement well

On a date: you disagree about something minor, a film, a restaurant, whether pineapple belongs on pizza. They say what they think, ask what you think, maybe laugh, and move on. Nobody needs to win.

Research from the Gottman Institute names four patterns that predict divorce: criticism, contempt, defensiveness and stonewalling (Fortune). The fixes the Institute suggests are worth watching for on a date as well: raising a complaint gently, taking responsibility for your part (even a small part), and stepping away to calm down before carrying on (Gottman Institute). Someone who can say "Fair point, I hadn't thought of that" in week two is showing you a skill that will matter in year five.

6. They're fine with your pace

On a date: you mention that you'd like to take things slowly, or that you need to leave by nine to relieve the sitter, and they say "Of course" and mean it. No sulking, no pushing, no guilt trip on the way to the car.

After 40, many of your commitments can't move: children, aging parents, work, the dog who needs a walk. A person who respects them early is showing you how the relationship will feel later, when there's more at stake.

7. They have a life of their own

On a date: they talk with real warmth about friends they've known for years, a hobby they're bad at and love anyway, a sister they call every Sunday.

Someone with a full life wants you as an addition to it, which is a much steadier footing than need. They're also more likely to give you room for your own friends, plans and Saturday mornings.

Using this on a real date

You don't need to interview anyone or carry a checklist into the restaurant. Enjoy the evening. Then, on the drive home or the walk to your car, ask yourself three questions:

1. Did they do what they said they'd do, from the confirming text to the time they arrived?
2. Did they ask about my life, and follow up on something I said?
3. How did they treat the people around us, from the host to the server?

Jot the answers in your phone if you like. After two or three dates, a pattern usually shows, and it's often clearer written down than in your head, where chemistry tends to do most of the talking.

You can also run one gentle test of your own. Mention something small that matters to you, like "I'm not drinking much at the moment" or "Sunday afternoons are for my kids," and see what they do with it. The green flag is that they remember it next time without a reminder.

If something about a date leaves you uneasy and you can't tell whether it's a real warning or just your nerves, our article on telling anxiety from a bad match has three questions that help sort it out.

The flags work both ways

Every item on this list is something you can offer too: turning toward the other person's small bids, being kind to the server, talking about your ex fairly, saying "Of course" when they need to leave early. You've spent years learning what a good partner looks like. Some of the best dates happen when both people bring that knowledge to the table.