I have had friends involved in car accidents who had horrible survivor guilt when someone died. I would sure expect, in a normal person, if you had to kill someone in self defense and still loved them, you would feel tremendous survivor guilt - unable to function. Not saying someone needs to feel that it actual self defense, but it seems like it is automatic and horrific. Don't see that anywhere here. She was fully able to function and interact to the point that no one could tell anything had happened.