Infidelity

[Bitchface]

I know someone in our firm is being unfaithful to their partner with another employee. They do have form for this, but the innocent partner doesn't deserve to treated in this way. The unfaithful one will skin their partner for every penny they can if it came to divorce. Should I tell or not?

No, none of your business

No. It's nothing to do with you.

Absolutely not.

Maybe I'm missing something here, but what is your actual concern? If it's that there is a breach of company policy regarding relationships between employees, then you need to escalate concerns through the correct channels, complying with company procedure

Not tittle tattle gossip, you have to focus on why your employer cares, which could be specifics about risks of reputational harm, potential for disruption in the workforce etc.

If you can't articulate it in those terms to management then keep quiet, it's none of your business and you would be held responsible for starting the shitstorm

Stealing daisy's eloquent phrasing, I've seen these shitstorms in the past and the damage they do. If it is not impacting the workplace you want to keep well out of it at all times. Don't get involved in gossip, change the subject and/or let the person telling you know you just aren't interested.

If it is breaking company policies unless it's directly involving you I'd still be tempted to keep out of it. If you need to report check if you can report anonymously in a Speak Up type service.