I moved out 6 weeks ago and DH filed for the divorce the week after. 

SD24 was 'DaughterWife' that lived with us and treated me like dirt (when she wasn't ignoring me) and DH would do nothing as they are a 'bonded pair' to say the least. Emotional incest, enmeshment plus physical intimacy and his anger that drove me to leave. Of course DW is protective of daddyyyyy and her 20yo sister follows her lead. They pretend to listen to daddy because he has the finances to provide for their lifestyles and with no boundaries, they do as they please.