Two possible reasons, for one after years of acting a certain way, it might be easier for her to stay bitchy instead of making a 180° and we don't know what the father told her before he died, probably something like kick him out or you will lose the house.
Zarah really makes this update great, I hope we get some romantic stuff with her in the next updates maybe even an exclusive ending... a man can dream.
Katie's butt seemed a bit too big in the park scene, where she jells at the dog owner, but maybe that was just a perspective thing.
I'm curious if we actually get the option to break up contact with the girls or if this is just added drama.
My strongly biased top 3:
Zarah
Monica
Jenna