What actually happened, is he took a pay cut in good faith, changed his mind and wanted to retire, and now he has to return money.
He's going completely off the rails on Twitter right now. So far he's tweeted a bath salts joke about Zay, deleted a tweet to Tyrod, and is still running his mouth starting at 3am talking about not being appreciated/HOF/sending highlights to the Bills.
This guy is a joke.