Office romance exposed: 40 percent admit cheating on partner with co-worker, survey finds

In today’s hyper-connected work culture, the office is no longer just a place for deadlines, meetings and coffee breaks. For many people, it has quietly become something else entirely: a place where relationships begin, evolve and sometimes even end in marriage, conflict or career changes.

A recent large-scale survey has now put numbers to what many have long suspected. Workplace romance is not just common, it is statistically significant, emotionally complicated and, in some cases, career-defining.

A comprehensive survey conducted by Forbes Advisor has revealed surprising patterns about relationships between colleagues, showing how blurred the line between professional and personal life has become.

Inside the survey: 2,000 employees, one surprising reality

The findings come from a survey of 2,000 employed Americans carried out by market research company OnePoll on behalf of Forbes Advisor.

And the results suggest that office relationships are far more influential than many people realise.

One of the most striking findings is that the workplace has become a major space for long-term relationships. According to the data, 43% of people who date a colleague eventually get married.

Even more surprising, the survey suggests that employees are now more than twice as likely to marry a co-worker than someone they meet on a dating app.

So why is the workplace becoming such a strong setting for romance?

The survey points towards what it describes as “comfortability”, along with shared daily experiences. In simple terms, colleagues often understand each other’s routines, stress and frustrations in a way others may not.

From tight deadlines to late emails, even something as routine as a 4:00 PM message from a manager becomes a shared experience that can build emotional connection.

The hidden risks behind workplace attraction

But the picture is not entirely romantic.

The survey also highlights a more complicated side of office relationships. It found that 40 percent of workplace romances involve someone who is already in another relationship, showing blurred boundaries and cases of cheating on an existing partner.

Researchers suggest that proximity plays a key role. The same closeness that builds trust can also increase temptation.

In fact, nearly 50 percent of employees admitted to flirting with colleagues, showing how common casual attraction can be in professional spaces.

The rise of the “office breakup plan”

With emotional and professional risks on the line, a new workplace behaviour has quietly emerged.

Nearly 30 percent of office couples reportedly create a “breakup contingency plan”, sometimes described as an informal “office prenup”. These agreements outline how they will manage work responsibilities, meetings and shared projects if the relationship ends.

It reflects a growing awareness that workplace romance is not just personal, but also professional.

When romance affects performance at work

The survey also shows that relationships at work do not stay in the background.

More than 57 percent of respondents admitted their romantic life has directly impacted job performance in some way.

For others, the impact is more extreme. Around 47 percent said they have actually changed jobs to pursue a relationship with a colleague, often to avoid HR complications or workplace tension.

Secrets, gossip and workplace politics

Even when employees try to keep relationships private, secrecy is rarely guaranteed.

The survey found that while 39 percent of people attempt to keep their office romance hidden, nearly 60 percent of their colleagues are already aware and discussing it.

This creates a strong culture of workplace gossip, which can quickly spread across teams and departments.

There is also a perception issue. Around 50 percent of employees believe workplace relationships can lead to favouritism, adding another layer of complexity for managers and HR teams to navigate.

From marriages to job changes, from secret relationships to office gossip, the survey shows that workplace romance is no longer a quiet exception. It is a visible and influential part of today’s working life, shaping careers, conversations and even life decisions in ways few organisations openly acknowledge.