Question

Why do people stay friends with people they don't like?

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Answer

Because friendship is not a single relationship type, and a substantial proportion of the people in anyone's network are held there by structure rather than by affection.

The research finding. Studies of social networks have consistently found that a meaningful proportion of relationships people describe as friendships are ambivalent — carrying both positive and negative feelings. Work by Bert Uchino and colleagues estimates ambivalent ties make up a substantial share of most people's close networks, and in some studies roughly half.

Why people stay:

Structural entanglement. This is the largest factor. Shared workplaces, mutual friends, family connections, children at the same school, or a common activity mean exit is costly and awkward. The relationship persists because leaving it disrupts a wider network, not because either party chose it.

History and sunk cost. Twenty years of shared experience creates obligation. Ending it can feel like discarding your own past.

No exit script, so drifting is the only available mechanism and shared context prevents drift.

Genuine ambivalence. Frequently the person is not disliked overall — they are supportive in some respects and draining in others, and both are true simultaneously.

Utility. Some ties persist because they are useful professionally or practically.

Avoiding conflict, since ending it would require an uncomfortable conversation.

Why it matters. The interesting finding is that ambivalent relationships appear worse for wellbeing than straightforwardly negative ones. Uchino's research links them to higher cardiovascular reactivity, elevated stress markers and poorer health outcomes.

The proposed explanation is unpredictability. A reliably difficult person can be prepared for and defended against. Someone who is warm one day and undermining the next keeps you in a state of vigilance, unable to relax or to write them off — and that sustained uncertainty appears to be the damaging part.

What tends to help: reducing frequency rather than severing; being clear-eyed about which category a relationship is in; and not expecting an ambivalent tie to become a close one.

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