That what I thought to. She looks self centered to me to. The way I see her is that the whole world is turning around Nora, only wants her needs. The way she interacts the her homemades to, interrupting, the whole world is from Nora. I don't like her. Typicial emo girl (sorry forr the Nora lovers, I find her discusting with her ugly nails and stuff).
In my opinion I don't think Nora is a stay forever at that apartment. I'm more inclined she is there until these girls can show that they can handle themselves accordingly before giving them the upper hand at running it. By the looks of the apartment a lot of money has been invested in this one compared to other apartments.