Aronsohn, who co-created the CBS sitcom, recently suggested that television was becoming too female-centric.
"We're approaching peak vagina on television, the point of labia saturation," he told The Hollywood Reporter. "Enough, ladies. I get it. You have periods."
Girls creator Dunham later called Aronsohn's remarks "d**kish" in an interview with The Huffington Post.
"I almost feel like that man is holding on desperately to a world that no longer exists," she said. "I felt especially bad for him because it's not even a funny joke.
"There's three shows on TV about women, so I guess we really reached our limit. It's not like three-quarters of the world is comprised of women, you idiot."
Girls will follow the exploits of four young women living in New York City.
The ten-episode first season will premiere on HBO on Sunday, April 15.
> Lena Dunham: 'Girls is vastly different to Sex and the City'
Watch a trailer for HBO's Girls below: