40% of workplace romances involve cheating on someone else.

Every Friday, Kay Reports uncovers global dating scams, emotional red flags, and digital deception — so you can date smarter, not harder.

40% of workplace romances involve cheating on someone else. That someone is not at the office.

The Forbes data on office relationships has one number that changes everything.

Forbes Advisor commissioned a survey of 2,000 employed Americans on workplace romance. The headline finding is the one everyone reports: over 60% of adults have had a workplace romance, and 43% of those relationships end in marriage. The coverage has been warm, even celebratory. Office love works. People meet at work. It is fine.

Nobody is talking about the other number.

40% of people who had a workplace romance reported that they were cheating on an existing partner when it happened.

Four in ten. Not a rounding error. Not an outlier category. The second most significant finding in the entire dataset — and the one that almost nobody leads with.

The controversial take

Here is what that number actually means in practice.

When your colleague starts a workplace romance, there is a 40% chance that someone outside the office — a partner who has never met you, who goes home to the same person every night, who has no idea this is happening — is being deceived. Not by a stranger on a dating app. By someone they trust completely. In a situation that is structurally designed to stay hidden.

Workplace romance is not just a risk to the people in it. It is a deception being run on someone who is not in the room — and who has no way to see the red flags because the relationship exists in a place they cannot access.

This is the dimension of workplace romance that Kay Reports covers and that almost no other publication does. We have written about power imbalance and why you cannot ghost your coworker, and about love contracts and who they actually protect. But the 40% figure reframes both of those entirely.

The most dangerous thing about workplace infidelity is not that it happens. It is that the workplace is structurally the best possible environment for it to stay hidden. 82% of workplace relationships are kept secret from management. The shared context — meetings, projects, business travel, late nights — provides unlimited cover. Every interaction has a plausible professional explanation. The deceived partner never gets access to the environment where the deception is happening.

And then there is this: 52% of people in workplace romances reported that their coworkers treated them differently as a result — with nearly 50% reporting increased workplace gossip and 33% reporting increased jealousy. Which means the office often knows before the partner at home does. The person being deceived is, structurally, the last to find out.

The red flags — from outside the office

If you are the partner at home, these are the signals worth knowing. They are not proof of anything. But they are the pattern.

🚩 Work has become the primary emotional outlet.
Over 50% of people in workplace romances reported that the relationship impacted their sense of individuality — meaning the work relationship starts to compete with the home one for identity and emotional investment. If your partner is consistently more energised, more distracted, or more emotionally present in conversations about work than in conversations about home, that shift is information.

🚩 A specific colleague appears more frequently in conversation — then disappears entirely.
The pattern in discovered infidelity cases is almost always the same: the name comes up constantly, then stops. The sudden absence of a name that was recently present is not neutral. It is managed. We covered this exact pattern in our edition on micro-cheating — the concealment is often more revealing than the behaviour itself.

🚩 Business travel, late nights, and after-work events cluster around one context.
The workplace provides unlimited structural cover. Overtime, conferences, team dinners, shared projects. None of these are red flags individually. A consistent pattern of extended professional availability that centres on one team, one project, or one colleague — combined with emotional withdrawal at home — is a pattern worth naming directly.

The Kay Reports rule

The most sophisticated deception is the one with the best cover story. A workplace romance has the best cover story available — and the person being deceived is structurally the least positioned to see it. If something feels different at home, the data suggests you are probably not imagining it.

🤖 Tools worth knowing

🎙️ Fireflies.ai → If conversations have started to feel rehearsed or inconsistent, Fireflies records and transcribes your calls automatically. Patterns of inconsistency in what someone says — across time, across conversations — become searchable. Trust your memory less. Trust the transcript more.

📋 Typeform → Relationship check-ins designed as structured conversations — not arguments — help couples surface what is actually happening before it becomes a crisis. A simple shared form asking the same three questions each month creates a record of where things actually are, not where each person imagines them to be.

⚙️ Make → For anyone processing the aftermath of discovered infidelity — organising evidence, timelines, communications — Make automates the admin of situations that require documentation. If you are in that process, having organised information matters.

Some links are affiliate links. Kay Reports may earn a small commission if you use them — at no cost to you.

If this landed differently than you expected, forward it to someone who needs to read it. The Forbes survey covered 2,000 people. The 40% is not a fringe statistic. It is the majority experience of people adjacent to workplace romance — they just do not always know it yet.

Hit reply and tell us — have you ever been the person outside the office in this situation? We read every response.

Kay Reports — Date smarter, not harder. Every Friday. kayreports.com