The line comes from Friends, the NBC sitcom that ran from 1994 to 2004, where Ross Geller, played by David Schwimmer, uses it to defend sleeping with someone else while he and Rachel Green were apart. Ross repeats it throughout the later seasons whenever the breakup is mentioned, turning a relationship argument into a running joke. Clips of the outburst spread on YouTube, TikTok and reaction videos because the phrase is instantly recognisable even without context, and it still works today as shorthand for refusing to admit fault.