In Duma Key, several things have happened.

Nick Lothario had been having a very secretive affair with Frida Goth. His wife Adriana finally found out and threw him out of the house.
Brad Burb got drunk and did something very disgusting, and his wife Tiffany threw him out.

The teens have been up to things, too:

Johnny Burb and Daniel Pleasant have fallen in love, having discovered that they are both gay.
Mortimer Goth is in love with Mary Sue Oldie.
Bella Bachelor is rather taken with Don Lothario.
Brandi Newbie is rather fond of Michael Bachelor.
Skip Broke likes Jennifer Pleasant and Nina Caliente.

Thus the 'canons' of the game are getting blown up all over the place.