Robert Smith cryptically shared in a fanzine that “Three” was written about “the eternal triangle”.
During their 1981 tour in support of their next album Faith, the band sometimes closed with a jam made up on the spot based on this song “to relieve the tensions of the day. Once it lasted 45 minutes...
Enough of that "stand up straight"
What nonsense
"No," I said, my face close to the ground, "I'll stay as I am."
"You really can annoy a person, I must say. Such a waste of time! Come on, put an end to it."
"The way you shout! In the quiet of the night!" I said
"Just as you like," he added
But wheeling suddenly around, he looked at me - I hadn't quite finished yet - and said: "What's this? You're all crooked! What on earth are you up to?"
"Quite right. You're very observant," said I, my head on the seam of his trousers, which was why I couldn't look up properly
I won't scream, I'll just stare at him as long as my eyes can stand it
"Well?" he said
"Well?" he said
"Well?" he said
Three was written by Robert Smith & Simon Gallup & Lol Tolhurst.
Three was produced by Robert Smith & Mike Hedges.
As part of a Q&A in the Cure News #6 fanzine from 1989, frontman Robert Smith had this to say on the song’s inspiration:
the eternal triangle