Aviva looked terrible, worn and tired. She really seems to have led a life where she was never told she's wrong, and was always the center of attention, and if not, she's drags out one of her phobia's, and bring everything back to 'All about Aviva'.
The results of her portrayal on the show, and all the negative feedback she got, must shocked her, and that's why she apologized to Ramona and Sonja, and attempted to backpedal saying people just didn't understand her.
I didn't believe her apology for a moment - there was nothing sincere about it - I really think that Ramona wanted to be her friend, but after the way Aviva has been all season, I can't see them ever mending the fence.