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Detective Column

This column is the English version of a column written in Japan.

Disclaimer
This column was originally written in Japanese and has been translated into English for your convenience. Please note that the legal information and references discussed here apply specifically to Japanese laws and regulations. If you require legal advice or information relevant to your own country, we recommend consulting a qualified professional who is knowledgeable about the laws in your area.

Why Is Workplace Infidelity So Common? Causes, Warning Signs, and What Happens Next

Even the happiest couples can’t always avoid the worry of infidelity. An affair is a concern that has existed throughout history, and some readers may currently be troubled by it. Many instances of infidelity begin at work; it’s not uncommon to hear stories such as, “He was cheating with someone in his department” or “She had an affair with her supervisor.”

This article explores why workplace affairs are so prevalent. We’ll look at what sparks these affairs, how to detect them based on those triggers, and what typically happens once workplace infidelity is uncovered.

Why Is Workplace Infidelity So Common?

What drives the high incidence of extramarital relationships at work? Let’s consider several factors.

You Spend More Time at Work Than at Home

Many couples meet through work, and most full-time employees spend seven to eight hours a day at their workplace—often more waking hours than they spend at home. During a busy season, time spent at work increases further, meaning one may share more hours and challenges with colleagues than with family. In such an environment, it’s easy for shared tasks and extended contact to develop into feelings of intimacy. Additionally, an affair usually requires finding excuses to see each other, but in an office setting, you naturally see one another every day, making private communication more attainable.

You Share Work Goals, Leading to a Sense of Solidarity

No job is free of stress. When people tackle demanding projects side by side, they build a special camaraderie—akin to the “suspension bridge effect,” where tension and heightened emotions create a bond. Having worked together under pressure, they might find a new closeness turning into a romance. This is especially true for coworkers on the same team or department, or in medical fields where doctors and nurses often collaborate.

Company Events and Social Gatherings Create More Connection

Beyond regular working hours, office gatherings, after-hours drinks, or team-building events also offer occasions to become closer. During the workday, personal conversations are limited, but at informal get-togethers, people share personal details or open up about themselves, sometimes sparking an affair. If both individuals are married, it can progress quickly once comfortable boundaries are crossed.

It’s Easy to Vent About Household Issues

The workplace is separate from home, so sharing frustrations about one’s spouse or household situation is more convenient—no family members are around to overhear. Whenever coworkers exchange grievances about home life, it can create a sort of mutual empathy, and, in some cases, lead to a romantic connection. The sense that you share a “common enemy” (stress at home) can increase emotional closeness and pave the way for an affair.

Common Triggers for Workplace Affairs

How exactly does a workplace romance blossom into an affair? Below are some typical triggers that spark these relationships, based on real-life stories from couples who’ve encountered infidelity on the job.

Reassignment or New Employee Arrival in April

In Japan, for instance, April marks the start of a new fiscal year with company transfers or fresh recruits. Employee A, working part-time, met employee B, newly assigned to her department. Frequent social occasions, plus collaborative overtime, drew them closer, leading to an affair. While spring and autumn in many countries can be periods of staff changes, this shift naturally fosters new acquaintances and sometimes unexpected romantic entanglements.

Joint Project Teams Encouraging Close Collaboration

When two coworkers are grouped into the same project team, they often share intense tasks and stress, forging a rapid bond. Even if they had no romantic inclination before, tackling complex challenges together might spark attraction. “Why start an affair when things are hectic?” you might ask. Ironically, stress can make people seek relief through an affair—an escape from work burdens into a new relationship.

Growing Intimacy at Office Drinks and Events

Consider a scenario where C, a senior worker, found herself in an affair with D, her subordinate, after an office party. They rarely spoke at the office, but being seated together at a social event revealed shared hobbies and interests, leading them to meet up outside of work. Even though C was married, the relationship advanced once they realized they connected so easily, eventually becoming an affair. Unstructured social time outside of the office helps colleagues discover personal sides of each other, fueling romantic interest.

Remote Work Communication and One-on-One Chats

The rise of remote work may seem like it reduces face-to-face interaction, but it doesn’t always diminish the chance of workplace infidelity. Employee E, for instance, switched to part-time office attendance and partial home-based work. The company introduced internal chat tools to improve communication outside the office, which provided a private channel for extended conversations with a coworker. Without the watchful eyes of colleagues around, E found it easy to coordinate schedules and discreetly meet in person. So even while working from home, frequent direct messages and flexible schedules can make an affair more plausible. Don’t assume remote work rules out workplace infidelity—it merely alters its shape.

How to Detect Workplace Infidelity

Though workplace romance might shift gears during remote work, it doesn’t eliminate infidelity altogether. Below are some potential warning signs of a spouse cheating with a coworker.

Monitoring Unusual Increases in Work Hours

Suddenly frequent late nights or weekend “office visits” may signal an affair. If a spouse claims, “We’re slammed at work, so I’ll be home late,” or “I need to go in on Saturday,” keep an eye on whether that’s unusually frequent. Particular times of the year like April might indicate post-transfer closeness. Long vacations like Golden Week could also prompt them to plan meetups soon after the break, so pay attention if unusual “busyness” appears around those periods.

Even in Remote Situations, Track Unexplained Outings

Working from home isn’t foolproof protection against an affair. People can schedule office visits specifically on days that match their lover’s schedule, or claim to need quiet spots like hotels or cafés for “concentration.” As a spouse, observe any pattern of abrupt or repeated absences you can’t account for—these might be opportunities to meet someone else. Remote work can also offer greater privacy for clandestine communications.

Fictitious “Business Trips”

Another telltale sign is the so-called “fake trip,” in which a spouse fabricates out-of-town work to hide an affair getaway. If your partner’s role doesn’t usually involve frequent travel but they suddenly have multiple overnight stays, it’s worth investigating. Keep notes of when it started and how often it happens. Potential patterns may emerge that confirm or dispel suspicions.

Check Belongings on Nights They Return Late

When a spouse who claims to be busy with “work” arrives home late, consider discreetly inspecting items like their pockets, wallet, or even the car. You might stumble upon suspicious receipts, personal effects that aren’t yours, or a distinct scent. Reviewing a phone’s contents could reveal more direct evidence but carries higher risk—if discovered, it could escalate tensions severely. A simpler route is to check everyday items that might reveal signs of an affair.

Stay Informed About Workplace Relationships

How well do you know your partner’s office environment? Who are their coworkers, and are they working closely with anyone in particular? If you’re uncertain, casually ask about their job tasks or colleagues. Learn who your partner interacts with to help identify a potential affair partner should suspicions arise. That said, avoid invading the office or accusing someone purely on speculation; keep your knowledge low-key to prevent alerting your spouse prematurely.

Consider Professional Investigation

If suspicions persist, hiring a detective or an agency for an “infidelity investigation” may be the most efficient, low-risk approach. Such professionals specialize in gathering evidence—identifying the affair partner, confirming rendezvous, and more. While the service typically requires a fee, it delivers clear, verifiable results helpful in legal or mediation settings. For instance, if you plan to pursue compensation from both spouse and affair partner, or negotiate child custody arrangements, conclusive evidence can be crucial.

What Happens After Workplace Affairs Are Exposed?

After a workplace affair comes to light, what repercussions typically follow? Is the cheating spouse forced to resign, or face a firing? Let’s look at a few possible scenarios.

Divorce, Growing Suspicion, and Office Rumors

In principle, personal affairs are unrelated to one’s professional standing. It’s neither lawful nor appropriate for colleagues to broadcast details of an affair. However, once a divorce occurs, workplace rumors can more easily surface. Completely concealing a workplace affair from everyone may be difficult.

Potential Reassignment If It Affects Work Performance

Even though personal relationships don’t inherently relate to job security, affairs can spill into work if they disrupt the office environment—e.g., special favors to a lover that cause tension among coworkers. When an affair undermines morale or productivity, management might respond with transfers or formal warnings.

No Direct Dismissal, But Some Voluntarily Resign

Legally, an affair alone doesn’t justify immediate termination unless it tangibly undermines the company. Nonetheless, many employees dealing with exposure or rumors choose to quit for their own well-being. An affair can destroy not only the family unit but also one’s career and future. If you suspect your spouse is involved in a workplace infidelity, clarifying the truth can help you and your family manage the outcome in the best way possible.

Japanese Detective Column