A few thoughts:
Some posters have said she's worse than Steven Assanti. I respectfully disagree because I believe that if Steven Assanti had the physique and mobility of a normal man, he might well be a serial killer. I don't say that lightly, but think of all the times he would say or do hurtful things and then giggle when called on it: he sees other people as there to either serve or amuse him.
Angela, on the other hand, sees others as there to either serve or "be there" for her. A small distinction maybe, but an important one. Having said that, she's hateful and horrible and definitely in the Top (or is it Bottom?) Five Worst Ever.
Angelogic: If I don't like my apartment, they don't give me the one I thought I was getting, and I voluntarily choose not to live in Houston as a result, it's exactly like the apartment managers are murdering me.
Angelogic: HOW DARE Dr. Now imply that I might be taking drugs, even though I actually am?
Angelogic: Dr. Now OWES me the surgery no matter what I do because.... er.... well, because..... um.... WELL, I DESERVE IT AND I'M NOT LETTING HIM TELL ME OTHERWISE!