Total bitch.
Since this movie was not about her art, it was apparently just to glorify selfishness.
She liked weird *beep* big deal, lots of people do, but that doesn't mean you have to abandon your entire family and have an affair with someone who is actually different, just because you WANT to be different.
This movie makes me hate Arbus. She goes and has her freak out fun while her husband is running the family business by himself, raising their kids by himself and trying to keep 4 entire LIVES together by himself while she just moves in with the man upstairs for a couple months and assumes his lifestyle. "So long, kids, I'm weird!"
Total bitch.