Rangers fined Barton seven weeks’ wages — £420,000 — stripped him of the captaincy and then sent him to Marseille on a season-long loan.
He recalled the moment the red mist descended at the Etihad as his Hoops survived the drop despite losing 3-2 to eventual champions City.
Barton told GQ Style: “I completely let myself down but it’s not a rational situation. I knew we could be relegated, they could win the league and I’m captain.
“There’s a bit of a media spotlight on me so if we go down, I’m going to take a lot of s***.
“I was already getting it on Twitter so pressure started building and I didn’t handle it well.
“My inner ***** doesn’t work well with injustice, it reacts too quickly.
“Tevez has done what he’s done, I have reacted and the aftermath is...”