What the data actually shows
Psychologist C. Raymond Knee's research distinguished two broad ways people think about relationships: 'destiny' beliefs (partners are either meant for each other or they are not) and 'growth' beliefs (relationships develop and improve through effort). The general pattern across this work is that people who hold strong destiny or soulmate beliefs tend to disengage more quickly when serious problems appear, reading conflict as evidence that they picked the wrong person — while growth-oriented believers are more likely to stay and work through the same difficulties.
Eli Finkel's work on what he calls the all-or-nothing marriage frames a related shift: modern relationships are increasingly expected to deliver more from a single partner than ever before — companionship, passion, personal growth, self-actualization. The research suggests this raises the bar so high that even strong relationships can feel like they fall short, which can make a fated 'perfect match' framing especially punishing.
On the matching question itself, the evidence that any two specific people are uniquely destined is thin. The broader pattern in relationship science is that compatibility exists across a range rather than at a single point — many people are 'compatible enough' for a happy, durable relationship — and that day-to-day effort, communication, and how couples handle conflict predict outcomes more reliably than the initial sense of cosmic fit. This is an area where strong causal claims should be made cautiously, but the general direction is consistent.
Why this feels different from how it actually is
The soulmate story is everywhere — in films, songs, and the way people narrate how they met — so it can feel less like a belief and more like an obvious fact. Stories also get edited in hindsight: a couple who built a strong relationship over years will often describe it as 'meant to be,' which makes fate look like the cause when the building did the work.
The feeling of intense early connection is real and powerful, and it is easy to read that feeling as proof of destiny rather than as the ordinary, well-documented chemistry of early attraction. When that early intensity fades, as it typically does, a destiny mindset can interpret the change as a sign the match was wrong, rather than as a normal phase that most relationships pass through.
And because the bar for a modern partner has risen so high, any real relationship — which involves friction, boredom, and compromise — can feel like evidence that the 'real' one is still out there. The gap is less between your relationship and a perfect one than between your relationship and an idealized story that no actual relationship matches.
The honest answer is less about whether 'the one' exists and more about what the belief itself does to a relationship.
What the research says to do about it
The most consistent takeaway from the destiny-versus-growth research is that a growth mindset toward relationships — treating them as something built and maintained rather than found and confirmed — is associated with weathering conflict better. This does not require pretending there is no such thing as a bad match; it means treating ordinary difficulty as something to work on rather than as a verdict on whether you chose correctly.
Where the evidence is reasonably supportive, it points to the unglamorous fundamentals: how couples communicate, repair after conflict, and respond to each other's bids for attention tend to predict relationship satisfaction and stability more than the initial sense of fated fit. Skills and effort appear to be more within your control, and more predictive, than finding a perfect pre-existing match.
It can also help to hold expectations realistically. Given that modern relationships are asked to supply so much, research suggests it is worth being deliberate about what you expect any single partner to provide, and meeting some needs — community, growth, meaning — through a wider circle rather than loading everything onto one person.
What the research says does not help
Searching for a flawless, frictionless match tends not to help, because the research suggests the soulmate framing itself can lower commitment when normal problems appear. Treating conflict or fading early intensity as proof you chose the wrong person can lead people to leave relationships that were workable, in pursuit of a fated fit that the evidence does not support existing.
Endlessly keeping options open in case a more perfect person exists is not well supported as a path to a happy relationship either; the pattern in this research favours investment and effort over continued searching for an ideal match. The belief that someone better is always out there can quietly undermine the relationship you have.
It is worth being careful here, though: a growth mindset is not the same as staying in a relationship that is genuinely unhealthy or unsafe. The research is about how to interpret ordinary difficulty, not a reason to ignore real incompatibility, mistreatment, or your own wellbeing.
Compatibility appears to span a range, not a point — many partners are 'compatible enough' for a lasting, happy relationship.
What this looks like in real life
Reading a rough patch as the wrong person
A couple hits ordinary conflict — friction, boredom, a fading early spark — and a destiny mindset reads it as proof they picked wrong. That interpretation can lead people to leave workable relationships in pursuit of a fated fit the evidence does not support. A growth mindset treats the same difficulty as something to work through rather than as a verdict on whether the match was correct.
'Meant to be,' edited in hindsight
A couple who built a strong relationship over years often describes it as destiny — which makes fate look like the cause when the building did the work. The intense early connection was real, but reading it as proof of a cosmic match confuses the ordinary chemistry of early attraction with evidence of one fated person. What predicts outcomes is closer to communication and repair than to initial fit.
Real numbers in context
This is more a question of belief and outcome than of clean statistics, so it is worth being honest that precise numbers here are limited and the strong claims are mostly qualitative. The robust finding is directional: across studies of destiny versus growth beliefs, soulmate believers tend to respond to relationship problems by disengaging sooner, while growth believers tend to persist and repair.
Two ideas are worth carrying away rather than any single figure. First, compatibility appears to span a range, not a point — many partners are 'compatible enough' for a lasting, happy relationship, which means there is almost certainly no single fated person you must find. Second, the all-or-nothing pattern in modern relationships means expectations of a partner have risen over time, which can make even good relationships feel short of an ideal that no real person was ever going to meet.