In a Situationship and Constantly Anxious? You're Not Overreacting.

Half of Americans between 18 and 34 have been in a situationship, according to a YouGov survey of 1,110 U.S. adults conducted in January 2024 — and roughly 1 in 5 adults carries an anxious attachment style that makes undefined relationships particularly painful to navigate. That overlap is not a coincidence. Situationships and anxious attachment are a specific kind of collision: one produces chronic ambiguity, and the other is wired to read ambiguity as a threat.

What a Situationship Actually Does to Your Nervous System

Attachment theory, developed by John Bowlby and extended to adult romantic relationships by Hazan and Shaver in their landmark 1987 research, is built on one central idea: human beings are biologically wired to seek proximity to a primary attachment figure when they feel threatened or uncertain. When that figure is reliably available — physically present, emotionally responsive, consistently engaged — the nervous system settles into what attachment researchers call "felt security."

A situationship structurally prevents felt security from forming.

There is no agreement on exclusivity. No shared sense of what this is. The person on the other end might be wonderful and genuinely interested, but they have not made that interest legible in a way the nervous system can process. And so the attachment system does not get to rest. It keeps scanning. It keeps running threat-detection on every text, every delay, every shift in tone.

This is not about being insecure in some global sense. It is about being in a relational environment that does not provide the information the attachment system needs to downregulate.

Neuroscience research published in Nature Reviews Neuroscience has found that unpredictable stimuli actually elicit more amygdala activity than predictable ones — meaning uncertainty itself, without any negative outcome, raises anxiety. The brain has a specific region, the bed nucleus of the stria terminalis, that activates under sustained, temporally unpredictable conditions. That region does not respond to a clear, identifiable threat the way the amygdala does. It responds to the ongoing possibility of a negative outcome — which is exactly what a situationship produces.

Research published in Current Psychology in 2024 adds another layer: intolerance of uncertainty functions as a key pathway between anxious attachment and anxiety symptoms. Anxiously attached people experience uncertainty not just as uncomfortable but as cognitively and emotionally activating in ways that people with secure attachment do not. The ambiguity of a situationship is not experienced as "we're figuring it out." It is experienced as a problem that has not been solved yet, a question the anxious person keeps trying to answer with not enough data.

The Specific Patterns You Probably Recognize

Anxious attachment in a situationship shows up in predictable ways. Your nervous system is doing what it always does when it cannot find the information it needs to settle.

Re-reading messages. Not once, but five times, looking for evidence about what they meant, what tone they were in, whether the response was shorter than usual and what that signifies. This is not obsessive behavior. It is what the hypervigilant attachment system does when it is running a scan without enough signal.

Suppressing the question. You want to ask what this is. You have wanted to ask for two months. You do not ask because you already sense that asking might shift the dynamic, might cause them to pull back, might make you seem like "too much." So you stay quiet and manage the anxiety privately instead, which means you are carrying a question you cannot ask in a relationship you cannot name with a person whose availability you cannot rely on.

The spike-and-drop emotional cycle. They reach out warmly and everything feels fine — more than fine, it feels like relief. They go quiet for three days and the floor drops out. This is not you being dramatic. The emotional swings in a situationship are real, and they are amplified by the anxious attachment system's sensitivity to signals of proximity and distance.

Physical symptoms you might not connect to the relationship. Sleep disruption, a persistent low-level vigilance, tension that does not quite go away. Research has found that lower perceived control — which is exactly what a situationship provides — predicts greater HPA axis cortisol response. The body is responding to the ambiguity even when you think you have talked yourself out of caring.

Why It Feels Addictive

There is a specific dynamic in situationships that makes them hard to leave even when they are clearly not giving you what you need. B.F. Skinner identified it in behavioral research decades ago: variable ratio reinforcement, sometimes called the slot machine effect. Rewards that arrive unpredictably create stronger behavioral conditioning than rewards that arrive on a consistent schedule.

When they reach out after days of silence, when they make a plan and actually follow through, when there is a conversation that feels genuinely close — the relief is disproportionately intense. It is not just nice. It lands as relief plus reward, and that combination activates the brain's dopamine system more powerfully than a reliably attentive partner's affection would.

The intermittent nature of the connection is not incidental to the feeling of compulsion. It is the cause of it.

A qualitative study published in Societies (MDPI) in January 2026, interviewing young adults about their situationship experiences, found that participants frequently described the emotional pain as "soul-crushing" — and then immediately minimized it because the relationship did not have a label, so it did not feel like it "counted." That social invalidation doubles the distress burden: you are in real pain, and you feel like you are not allowed to call it that.

This is important to name because it is easy to interpret the pull you feel toward a situationship as evidence of how much you care about this specific person, when some portion of it is the neurological signature of a variable reward schedule. That does not make what you feel not real. It means you deserve to understand the mechanism, so you can make choices with a clearer picture.

What Attachment Science Actually Says About This

Hazan and Shaver's 1987 research established that the same three attachment patterns observed in infants — secure, anxious, and avoidant — appear in adult romantic relationships in roughly similar proportions. Approximately 1 in 5 adults self-identifies with an anxious attachment style, characterized by a strong need for closeness, sensitivity to perceived distance or rejection, and difficulty feeling secure without clear reassurance.

What attachment research makes clear is that anxious attachment is not a personality flaw. It is an adaptation. For most people with anxious attachment, it developed in response to early caregiving environments where emotional availability was inconsistent — sometimes warm and present, sometimes withdrawn or unpredictable. The attachment system learned, correctly given the circumstances, that connection requires vigilance, that you cannot afford to miss signals.

The problem is that this system does not automatically recalibrate when the environment changes.

A 2025 study published in Psychological Reports (SAGE) found something particularly relevant: relationship uncertainty negatively affected commitment more in people with anxious attachment than in people with avoidant attachment. Anxiously attached people are not just anxious about relationships in general — ambiguity specifically destabilizes their capacity to feel secure in a way that does not apply to the same degree for other attachment styles.

Being in a situationship with anxious attachment is not a character problem. It is a structural mismatch: an attachment system that needs clarity, inside a relational structure that refuses to provide it.

What Actually Helps

The pull to manage the anxiety by being more patient, more flexible, more willing to wait it out — that is the anxious system's strategy. It is not wrong, exactly, but it keeps you working harder inside a structure that is not working.

A few things that actually move the needle:

Naming the mechanism out loud. Most people in situationships have been privately managing the anxiety while performing as though it is fine. Saying "I don't feel secure in this and I want to" — first to yourself, then possibly to the other person — is not neediness. It is honest information about what you need.

Working on uncertainty tolerance, not just anxiety management. The anxious attachment system does not need to be suppressed; it needs an environment where it can get accurate information. Therapy approaches targeting intolerance of uncertainty have been shown in clinical research to reduce the intensity of the anxious activation that ambiguity triggers. You are not trying to stop caring. You are trying to care without the threat-detection system running continuously.

Understanding your own pattern. Situationships tend to be familiar in a specific way for people with anxious attachment. The intermittent availability mirrors something earlier. Therapy can help locate where that template comes from and what it would take to need something different from a relationship — and to actually ask for it.

Getting clear about what you want. This is not about deciding to leave. It is about deciding what you actually need from a relationship and whether this one has any reasonable path to providing it. The anxious system's tendency is to stay focused on what the other person wants, what they might need, whether you are being too much. A useful reorientation is: what do you need? And is this situation capable of giving it to you?

One important note from the research: attachment style is not fixed. Studies including a controlled trial of 495 patients found that attachment characteristics change meaningfully during both cognitive-behavioral and psychodynamic therapy. The pattern that keeps pulling you toward ambiguous relationships is not permanent. That is what makes this worth addressing.

If the answer to "what do I need?" keeps coming back as something this situation cannot offer, that is information too. Reach out or book the call if you want to talk through what this might look like for your situation specifically.