You check your phone again, no reply. It has been forty minutes. Your mind begins to build a case: they are losing interest. You said something wrong at dinner. They are pulling away. By the time they respond (cheerfully, warmly), you have already lived through an entire breakup in your head. If this sounds familiar, you are not dramatic. You are not “too much.” You may be experiencing relationship anxiety, a pattern that affects far more people than most realise,and one that has clear roots in how the brain and nervous system process attachment and threat.

What is Relationship Anxiety?

Relationship anxiety is not a formal clinical diagnosis, but it is a well-documented pattern within attachment research. It refers to persistent worry, insecurity, and hypervigilance within romantic relationships, even when there is no objective evidence of a problem. It is distinct from general anxiety, though the two often co-occur. Where generalised anxiety might attach to health, finances, or work, relationship anxiety is specifically focused on the security of the bond: Am I loved? Will they leave? Am I enough?

Research by Leary et al. (1995) on the sociometer theory of self-esteem proposed that humans have an internal monitoring system that continuously tracks signs of social acceptance and rejection. In individuals with relationship anxiety, this system is set to a heightened threshold, detecting threat where none exists and interpreting ambiguity as danger.

How Relationship Anxiety Shows Up

Reassurance-Seeking

Relationship anxiety is not always obvious. It does not always look like clinginess or tearful phone calls. It often hides behind competence, independence, or silence. Common signs include constant reassurance-seeking, such as needing to hear “I love you” or “everything is fine”. The relief lasts only minutes before the doubt returns. The reassurance never fully lands because the underlying belief (“I am not enough”) remains unchallenged. Overanalysing communication, reading into the tone of a text, the length of a reply, the absence of an emoji. A neutral message becomes evidence of withdrawal. A delayed response becomes proof of disinterest.

Fear of Abandonment

Fear of abandonment also emerges, which is a persistent sense that the other person will eventually leave — that it is only a matter of time. This fear may intensify precisely when the relationship is going well, because safety feels unfamiliar and therefore suspicious. Testing the relationship and unconsciously creating situations that force the partner to prove their commitment such as picking fights, withdrawing to see if they pursue, and asking loaded questions. These tests are not manipulative; they are the nervous system’s way of seeking data about safety.

Difficulty trusting

Even when a partner is consistent, reliable, and loving, the anxious mind finds reasons to doubt. Trust requires a baseline of felt safety that relationship anxiety undermines. Self-silencing Some people respond to relationship anxiety not by seeking reassurance, but by suppressing their needs entirely. They become hyper-accommodating, agreeable, and invisible; believing that if they are easy enough, the partner will not leave. Physical symptoms Relationship anxiety lives in the body: chest tightness, stomach knots, disrupted sleep, appetite changes, a constant low-level hum of
tension that intensifies around perceived relational threat.

Stay Tuned for Part II – Where Relationship Anxiety Comes From

About the Author

Nicole Lam, MA, RCC is a Registered Clinical Counsellor at Emergence Counselling & Wellness. She offers trauma-informed, culturally responsive therapy for adults, with a focus on identity, intergenerational experiences, anxiety, depression, and relational concerns. Nicole provides counselling in English and Cantonese, supporting clients across British Columbia through virtual therapy.