The 23-year-old almost moved back to the Catalan club in the summer but Arsenal rejected their advances.
He told the Daily Mirror: "I have strong feelings for Barcelona and they will always be in my head. I try to watch their games most weekends. But my first priority now is Arsenal because I am a professional.
"What happened in the summer didn't damage my reputation at the club or my friendships or relationships there.
"Many of my team-mates are also friends and they know my true feelings.
"It will be spectacular to repeat the Champions League final of 2006 in a stadium like Wembley. And of course to defeat Barca."
Gunners boss Arsene Wenger was instrumental in convincing Fabregas that his immediate future lay in north London and Fabregas added: "I've never had a problem with the coach. He knows how passionate I am and that I will always give my maximum for Arsenal. I dream of winning the title with Arsenal. I never hid my intentions in the summer. I wanted to play for Barcelona but it wasn't possible and that's finished.