Is it anxiety or intuition about someone new?

If you can describe the uneasy feeling as something this person actually said or did, and it keeps showing up, it’s leaning toward intuition. If it’s vague, gets foggier when you try to pin it down, or sounds a lot like how your last relationship ended, it’s more likely anxiety, and in your 40s there’s usually plenty of history for anxiety to borrow from.

Why is it so hard to tell at this point in life?

Meet Ruben, 47. Divorced four years, two teenagers, a job that runs his calendar. He’s had three dinners with Leah, a teacher he met through a friend. She’s warm, funny, and asks good questions. And there’s something he can’t name. On the second date she checked her phone twice during dinner. On the third she mentioned her ex in a way that sounded, to him, a little too fond. He drove home with a knot in his stomach and spent Sunday asking himself whether he’s picking up on something or just scared.

That question is harder at 47 than at 27, for two reasons.

The first is that you have more experience, which cuts both ways. Ruben has learned real things about what doesn’t work for him. He’s also learned, the hard way, what it feels like when something is ending, and that memory can fire on a quiet Sunday whether or not anything is ending.

The second is that the early read on a new person is shakier than it feels. In a study of speed daters, Samantha Joel, Paul Eastwick and Eli Finkel measured more than 100 traits and preferences before people met. Their models could predict how much someone tended to like others in general, but not which two particular people would click.1 The chemistry between two specific people seems to show up in the meeting itself, not in a checklist beforehand. Three dinners is real information. It isn’t a lot of it.

What does intuition actually look like?

Intuition is fast pattern recognition, and patterns need something to recognize. Real intuition about a person can usually be traced back to a cue: a story that changed between tellings, a pattern of canceling, how they spoke to the server. When you look closer, it gets sharper.

Your body is part of this, and it isn’t always right. Barnaby Dunn and colleagues found that people who were better at sensing their own heartbeat relied more on bodily signals when making choices in a lab decision task. That helped them when the signals pointed toward good choices and hurt them when the signals pointed toward bad ones.2 A knot in your stomach is real. It just isn’t automatically accurate. It’s a prompt to look, not a verdict.

Where does the past sneak in?

Here’s the part that matters most in your 40s. Your history doesn’t only shape how you read people. It may also shape who you pick.

University of Toronto researchers Yoobin Park and Geoff MacDonald compared the personalities of current and past partners of 332 people and found significant consistency from one partner to the next.3 People who say “I’m done with that type” often end up with a version of that type anyway. So when Ruben’s gut tightens around Leah, one honest question is whether he’s reacting to her, or to the resemblance.

And suspicion travels too. In a study that followed adults from one relationship to the next, Knopp and colleagues at the University of Denver found that people who knew or suspected that a past partner had been unfaithful were two to four times as likely to report the same about their next partner.4 The study can’t say why. Some people may keep choosing partners who cheat, some may stay on high alert after being hurt, and for most it’s probably some of both. Either way, it’s a reason to treat a familiar feeling with a little extra curiosity rather than instant trust.

How do you sort one from the other?

Ruben tried separating four things on paper:

• What happened: “She checked her phone twice at dinner. She mentioned her ex, warmly, once.”
• The reading: “She’s not over him, and she’s not that into me.”
• The fear: “I’m about to be blindsided again, like last time.”
• The next step: “Notice whether the phone thing repeats. Ask her about the ex directly, lightly.”

Once it was written down, the facts looked smaller than the knot. The reading was a guess about what Leah thinks, which Ruben can’t know. The fear was almost word for word what he felt in the last year of his marriage. That’s what anxiety often looks like: a lot of feeling attached to a little evidence, and a strong family resemblance to a past ending.

That doesn’t settle it. If on date four the phone comes out every ten minutes and the ex comes up again, the facts column grows, and Ruben’s gut was picking up on something real. Intuition tends to get stronger with more data. Anxiety tends to stay just as loud no matter what the data says.

When is it time to get help?

If the unease shows up with everyone you date, keeps you up at night, or crowds out the rest of your life for weeks, talk to a licensed mental-health professional. That’s not a sign you’re broken. It’s a sign the alarm is set more sensitively than your current life needs.

What the research doesn’t show

• The speed-dating study measured first attraction, in short dates, not how relationships turned out.1
• The partner-consistency study is about personality, not about whether those relationships went well or badly.3
• The heartbeat study used a lab decision task, not real people.2
• The serial-infidelity study reports associations, and can’t tell you anything about the person you’re seeing now.4
• Nothing here can read someone’s intentions. It can only help you see what’s yours and what’s theirs.

What to do this week

• Take the check above with one specific feeling in mind.
• Write the four lines (what happened, reading, fear, next step) and look at how big each one is.
• Ask one plain question about the thing that bothered you, lightly and early. “You mentioned your ex. How long ago did that end?” is a normal date question at this age.
• Give it two more meetings before you decide, unless something crosses a clear line.
• Notice the rerun. If the fear sounds exactly like your last ending, name that to yourself before you name it about them.