1997 October 2, Crash Street Kidd, “What's your opinion”, in soc.singles[1] (Usenet):
She is the fantasy he can't have. The one that got away. If she ever goes single do not let him visit her alone. Men can be weak ;-).
2007 August 24, Aardvark, “GAME OVER: Chick on "Who Lies More" (VH-1)”, in alt.seduction.fast[2] (Usenet):
it matters way too much to fathead losers because they love to obsess about the one that got away instead of all the women they could be getting if they'd only take the time to tighten up their game.
2018 July 1, Forrest (lyrics and music), “One That Got Away”, in Warm:
I love you and there's no way you can know / What I'm trying to convey / I love you and there's no way you can know / You're the one that got away
