Before their swoop for Ajax defender Sergino Dest, Barca made an attempt for England U21 international Aarons, but Norwich refused to do business.
But he told the Can we come in? podcast: "As soon as the negotiations were broken off, I could not be broken or down.
"I have a job in Norwich and to play the best I can. That's what was most important to me at the time."
Aarons continues to be monitoring by Premier League clubs this season, with Tottenham particularly keen.