Does a writer owe any obligation to friends and family that shares stories in confidence, or is it acceptable to publish anything so long as the writer changes the names and calls the work fiction?

Is the novel The Counterlife making any statement about the nature of fiction versus reality, and is this in any way reflected in the title?

The novel contains many instances of types of individuals and some embody stereotypes. What sorts of stereotypes are contained in the novel (religious zealot, snob, hard working conservative, joker, etc.), and do any of the characters change type from one section to another?

The novel contains more than one instance of third person narration. Is the third person narrator the same in all the sections coming that point of view, or are there indications that there may be more than one third person narrator...