The Psychology of Mixed Signals — Why People Run Hot and Cold
Last reviewed by the Men Women Psychology editorial team.
The evidence
What the research actually shows
Some inconsistency may actually heighten attraction, which is part of why mixed signals are so common and so confusing. Whitchurch, Wilson and Gilbert (2011) found that people who were uncertain whether someone liked them often thought about that person more and reported more attraction than those who knew they were liked. Ambiguity, in other words, can intensify interest rather than simply signaling a lack of it.
Early dating is also saturated with what Knobloch and Solomon (2002) call relational uncertainty — doubt about one's own feelings, the other person's feelings, and where the relationship is going. Their work shows that this uncertainty shapes how people communicate, often making them more cautious, indirect, and guarded. Behavior that reads as 'mixed' frequently reflects someone who genuinely does not yet know what they want.
Attachment offers a deeper explanation for the hot-and-cold pattern specifically. Mikulincer and Shaver (2007) describe how anxiously attached people may pursue closeness intensely, while avoidantly attached people seek distance when intimacy grows — and many people carry a blend of both. The resulting approach-and-retreat can look, from the outside, exactly like deliberate mixed signals when it is actually internal conflict playing out.
The mechanism
Why this happens
Often the signals are mixed because the person's feelings genuinely are. In the uncertain early phase, attraction and hesitation can coexist — interest pulling them forward, caution or fear of getting hurt pulling them back. The inconsistency outside reflects an unresolved push and pull inside, not a calculated strategy to keep someone guessing.
Attachment dynamics sharpen this. For someone with avoidant tendencies, warmth that starts to feel like real closeness can trigger a need for space, so they pull back just as things deepen — then return when the distance feels safe again. For someone anxious, fear of rejection can produce alternating bursts of pursuit and protective withdrawal. Either pattern reads as hot and cold.
Communication norms add a layer. Many people stay deliberately ambiguous to protect themselves from rejection or to avoid an awkward conversation, sending soft signals they can later interpret either way. And because Whitchurch's work suggests uncertainty can intensify attraction, some inconsistency is reinforced precisely because it seems to 'work,' even when no one intends it as a tactic.
In practice
What this looks like in real life
Someone is warm, attentive, and texts constantly for a week, then goes quiet and distant the next. Often this is not a strategy but an avoidant reflex: as closeness grew, it triggered a need for space, and the retreat is about their discomfort with intimacy rather than fading interest in the other person.
A person keeps things vague — making plans but not committing, showing interest but never defining it — because they are genuinely unsure of their own feelings. The ambiguity that frustrates the other person is, for them, an honest reflection of not yet knowing what they want.
On the receiving end, someone reads deeply into every shift in tone, replaying messages to decode intent. The uncertainty itself can heighten their attraction and preoccupation, which is part of why mixed signals are so absorbing and so hard to walk away from.
Myth vs. evidence
What most people get wrong about this
The biggest misconception is that mixed signals are usually a deliberate manipulation — someone playing games to keep the upper hand. Research points more often to genuine ambiguity and attachment-driven push-pull. The person is frequently as confused as the one trying to read them, and assuming bad intent can misread ordinary uncertainty.
It is also commonly framed as a one-gender behavior. The evidence does not support that: both men and women send and struggle to interpret mixed signals, and the underlying drivers — uncertainty, fear of rejection, avoidant or anxious tendencies — appear across genders rather than belonging to either one.
Why it matters
What this means for relationships
Because mixed signals so often reflect real uncertainty, trying to decode them indefinitely tends to be draining and unreliable. A clearer path is to watch the overall pattern over time and, where appropriate, to ask directly — relational uncertainty research suggests that gentle, honest conversation reduces ambiguity far more effectively than guessing or testing does.
It also helps to notice your own response. If uncertainty is heightening your attraction and preoccupation, as Whitchurch's findings suggest it can, that pull may say more about the ambiguity than about genuine compatibility. Consistency — not intensity — is usually the more reliable signal of where someone actually stands.
Where it varies
The nuance
Not all inconsistency means the same thing. Some people run hot and cold because of avoidant attachment; others because they are genuinely undecided; others because life is simply busy and uneven. Reading a single cause into mixed behavior can mislead, and the honest answer is often that you cannot know intent from the outside alone.
And this is not a gendered trait. Hyde's (2005) gender similarities hypothesis is a useful corrective to the idea that one sex is more prone to games; attachment style, circumstance, and personality predict mixed signals far better than gender does. Most people send some mixed signals when they themselves are unsure.
Questions people ask about this
Why do people send mixed signals?
Often because their feelings genuinely are mixed. Early dating is full of uncertainty, and attraction can coexist with caution or fear of getting hurt. Attachment patterns add a push-pull dynamic. Research suggests inconsistency usually reflects internal conflict rather than a deliberate strategy to keep someone guessing.
Are mixed signals usually a deliberate game?
Not usually, according to the research. The person sending them is frequently as unsure as the one trying to read them. While some people do play games, assuming bad intent often misreads ordinary uncertainty or attachment-driven hot-and-cold behavior. Genuine ambiguity is the more common explanation.
Why does someone get close and then suddenly pull away?
This often reflects avoidant attachment: as intimacy grows, it can trigger a need for space, prompting retreat — then return once distance feels safe. It tends to be about their discomfort with closeness rather than fading interest. Anxious patterns can produce a similar, though differently driven, push-pull.
Why do mixed signals make someone more attractive?
Research by Whitchurch and colleagues found that uncertainty about whether someone likes us can increase how much we think about and feel drawn to them. The ambiguity heightens preoccupation. This is part of why mixed signals are so absorbing — though that pull may reflect the uncertainty more than genuine fit.
Do men or women send more mixed signals?
Both do, and the research does not support framing it as a one-gender behavior. The underlying drivers — uncertainty, fear of rejection, avoidant or anxious tendencies — appear across genders. Attachment style, circumstances, and personality predict mixed signals far better than gender does.
How should I respond to someone who's hot and cold?
Rather than endlessly decoding, it tends to help to watch the overall pattern and, where appropriate, ask directly how they feel. Honest conversation reduces ambiguity better than guessing. And notice your own pull — consistency, not intensity, is usually the more reliable signal of where someone stands.
Research sources
These references point to the published research and established frameworks behind this page. They are provided for further reading; see our research methodology for how sources are selected.
- Whitchurch, E. R., Wilson, T. D., & Gilbert, D. T. (2011). "He loves me, he loves me not...": Uncertainty can increase romantic attraction. Psychological Science, 22(2), 172–175.
- Knobloch, L. K., & Solomon, D. H. (2002). Information seeking beyond initial interaction: Negotiating relational uncertainty within close relationships. Human Communication Research, 28(2), 243–257.
- Mikulincer, M., & Shaver, P. R. (2007). Attachment in Adulthood: Structure, Dynamics, and Change. Guilford Press.
- Hyde, J. S. (2005). The gender similarities hypothesis. American Psychologist, 60(6), 581–592.