"It's completely out of my mind, worrying about Liverpool and what could have been. That's all in the past," he said.
"This season it's a different situation. Manchester City have had a bid accepted for me and they made me feel wanted."
Barry issued a letter to fans through a local newspaper after the move explaining his decision to leave Villa Park.
He added: "People made out I was sort of apologising for it. I don't feel a need to apologise for leaving Aston Villa. I just stated my reasons. I had spent 12 years at the club and wanted to state my reasons."