Actually, it sounds as though you don't know what you are talking about. Her personality has obviously been altered, and in a fundamental way: she used to love being the Hulk, to the point where she resented having to change back into Jennifer Walters. Now she dreads transforming in the Hulk. In other words, she has now become just like the old Hulk.

You also don't sound as though you know what you are talking about when you talk about grief. People lose actual siblings every day. It's sad, but people's whole personalities don't reorient themselves are a result.

Incidentally, she is not performing her job at all well, since her client told her that her landlord is harassing her and trying to force her to leave. Rather than take advantage of New York City's extremely strong tenant's rights laws (very possibly the strongest in the world), she just tells the landlord that he needs to show up in court to show cause in thirty days. She should have immediately filed an action in Housing Court. What Walters does is probably malpractice. So, no, she's not doing her job well at all. Again, you sound as though you do not know what you are talking about.