The best commentary on Michael's betrayal of Kay, IMO, comes near the beginning of III. Michael, with his usual self-justification fantasy, tells Kay: "I spent my LIFE protecting my family from the horrors of this world." And Kay replies, "But you became my horror." Right on, Kay.
Ntra la porta tua lu sangu � sparsu, E nun me mporta si ce muoru accisu... E s'iddu muoru e vaju mparadisu Si nun ce truovo a ttia, mancu ce trasu.