Dawnstream Not really because Rothfuss hasn't fully revealed her, even in her own book. If you read "The Slow Regard of Silent Things," you'll gain more insight into her, but it raises more questions than it answers. She's either a cracked human student or something otherworldly. Kvothe seems to believe the former, while I believe the latter. I think she's a demigod, but that's probably just what I want her to be.
This answer contains spoilers… (view spoiler)[She was a student at the university. Something happened and she broke inside, and fled to the Underthing. If you read The SLow Regard of Silent Things closely, there's a hint that she was sexually abused at some point. I suspect this could be what broke her. (hide spoiler)]