The Book of Their Love (Infamously) Part Three

Part Three follows the main characters as they try to break themselves and others free of what binds them.
Will Brad, Carrie's cuckolded husband, finally give up on their relationship? What holds him to her? Will Brad join PX's cuckolded husbands club, men who are dominated by David?
Fanboi the stalker has actually fallen for another girl. Too bad she's also a PX girl who works under David. Can he take Candy from the sex god himself? And what is Fanboi building in his garage?
Can David, the man who vows never to make sexual compromises, bring himself to compromise regarding Carrie? Can he bring himself to accept what she offers instead of insisting on what he demands?
PX is trying to alter everything about Carrie, with the changes becoming more and more drastic. When will she finally say no? At that point, if it ever comes, who will Carrie be?