Opposites Attract? Attachment, Attraction and Why It’s Not an Accident

Paula Abdul told us back in the late 80s that opposites attract. She sang it, danced it, and flirted with a cartoon cat to drive the point home. And while shoulder pads haven’t aged particularly well, the idea itself has remarkable staying power  –  especially when people arrive in my therapy room feeling the people they chose to be in a relationship with are exactly that.

Now we’re not talking about he’s tall and she’s short, or one likes indoors and the other likes outdoors. We’re talking about one wants to stay close, the other takes space.

From an attachment perspective, this isn’t random. It’s patterned.

Attachment: why difference feels so compelling

Attachment theory helps us understand how our earliest relationships shape what feels familiar and emotionally safe in adulthood. Broadly speaking, people tend to be secure, pre-occupied (sometimes called anxious*), or avoidant, and a small proportion are known as disorganised.

Here’s the part Paula Abdul didn’t mention: pre-occupied and avoidant partners are very often drawn to each other.

The pre-occupied partner is emotionally attuned, expressive, and keen on connection. The avoidant partner values independence, self-sufficiency, and not getting too emotionally entangled. At the beginning, this pairing can feel exciting and complementary. One brings warmth and intensity; the other brings steadiness and calm. It can feel like balance.

Until it doesn’t.

(* I prefer ‘preoccupied’ to ‘anxious’ – ‘anxious’ describes a feeling whereas pre-occupied and avoidant both describe behaviours; it also has the risk of implying that avoidant types don’t get anxious.)

A developmental pull, not a coincidence

From a developmental viewpoint, we’re unconsciously drawn to partners who activate unfinished business from earlier relationships. Not because we enjoy emotional difficulty, despite what our relationship history might suggest, but because part of us hopes this time the story will end differently.

If you grew up needing to work hard to be noticed, an emotionally reserved partner can feel strangely magnetic. If intimacy once felt overwhelming, someone emotionally open may feel enlivening at first, before becoming, frankly, a bit much.

Opposites attract not because the universe enjoys irony, but because the nervous system recognises familiar emotional terrain – even when it’s rocky.

When attraction turns into a pattern

Problems arise when each partner’s protective strategy triggers the other’s attachment fears. The anxious partner moves closer, seeking reassurance. The avoidant partner steps back, needing space. The more one pursues, the more the other withdraws. Both feel misunderstood. Both feel justified. Neither feels particularly happy.

This is the relationship treadmill: lots of movement, very little progress.

Growth means differentiation, not sameness

Relational growth isn’t about becoming more alike or endlessly “meeting in the middle.” From a developmental- and attachment-informed perspective, it’s about differentiation: the ability to stay emotionally connected while remaining psychologically separate.

In practice, this means learning to hold on to yourself and the relationship at the same time. The anxious partner develops the capacity to regulate their own emotional states and tolerate distance without panic. The avoidant partner learns they can stay emotionally present without feeling swallowed whole. Differentiation allows difference to exist without it becoming a threat – needs can be expressed without protest, space can be taken without rupture. Rather than pulling apart or collapsing into each other, the relationship becomes flexible, resilient, and far less exhausting.

So… do opposites attract?

Yes. Regularly. But not because it’s romantic destiny. It’s because our attachment systems are exquisitely sensitive to familiarity, even when familiarity includes discomfort.

The hopeful part is this: patterns can be understood, softened, and changed. With curiosity and compassion, partners can stop replaying old dances and start choosing new ones.