The combative midfielder insisted his red card offence stemmed from a willingness to prove himself deserving of the Rossoneri jersey
The 28-year-old endured a mixed night at San Siro, with his first-half goal later cancelled out by a moment of madness which saw the former Arsenal man red-carded for a reckless tackle on Juan Zuniga.
Speaking to reporters after the game, Flamini offered apologies but stressed it was a case of wanting to impress.
"I'm happy about scoring the goal. I had so much joy in scoring my second goal in a row, but I am disappointed about my red card," he told reporters after the game.
"I wanted to show that I am a player full of enthusiasm who deserves to wear the Milan shirt.
"It is a mistake to leave the team with ten man, but I had a great desire and anger can happen in football occasionally."
The Frenchman also fuelled speculation regarding his future by refusing to rule out a move to French giants Olympique de Marseille.
"My future? I just said never say never about the possibility of moving to Marseille," he added.