Abbott cleared the air with The New York Times , saying it was a falling out with said role that pushed him to leave. As the show progressed, Abbott began to realize that, despite the honesty of Dunham's vision, he couldn't relate to his character anymore. "The world that Lena [Dunham] wrote was very real, especially in New York, but it wasn’t as relatable for me on a personal level," he confessed.
Currently, he's starring in Hill Town Plays, a downtown Manhattan-based stage show where he plays a masculine yet fragile man (attributes his character of Girls vied for, but could never become). "There’s something satisfying about playing parts where you really relate to the characters,” he explained.
As far as the future of Girls , well, we don't know much. Have patience, though, early 2014 isn't too far off. (The Hollywood Reporter)