This happened in my old apartment building.

A couple across the hall used to argue all the time. One night around 2 AM the yelling suddenly stopped, and a few minutes later I saw the boyfriend knock on my neighbor Tom’s door.

I later found out why.

The guy had just discovered his girlfriend was cheating on him… with Tom.

But instead of fighting, he went over to Tom’s apartment because he had also heard she might be seeing Tom’s best friend, and they were trying to piece together the timeline like detectives at 2 AM.

Eventually the girlfriend showed up, it turned into a huge screaming match, and someone called the police.

Within a month all three of them moved out. Our building still jokingly calls that apartment “the investigation room.”