Honestly, the only 'fascinating' part is trying to figure out whether Lena Dunham (producer/writer/star!) is lampooning her character or whether the character is so close to who Lena Dunham is that she doesn't realize that Hannah is not only a basketcase, but also rather awful.

And every time I see someone say "But I am/was just like that!" I want to cringe.

Really? You were/are like that? Are you proud of that fact? You're comfortable announcing that to the public? The girl LICKED her pus-covered cotton ball and STUCK IT BACK IN HER PERFORATED EAR!!!