The Kill Bill star said that she was hell-bent on continuing her acting career after the birth of her children Maya Ray, now nine, and five-year-old Levon Roan.
But she found it too difficult to balance her career and family responsibilities.
"(Hawke) claimed I couldn't be a full-time mother and actress. I insisted I could. But I couldn't. I really try to give all of myself," Contactmusic quoted her, as saying.
"I wouldn't even read a script that wasn't shooting in New York because I needed to be home.
"It's a very difficult balance. I've thought about quitting but I love it too much, and now I'm a single mother so I can't quit," she added.