marital misconduct

Conduct that is alleged to have caused the erosion of the marriage.  In some states the spouse found guilty of martial misconduct will be adversely effected during property division, distribution of spousal support, or awarding attorney's fees.  In states where misconduct is a factor, the following may be considered as behavior consituting marital misconduct:

Adultery

Addiction (drugs, alcohol, etc.)

Domestic Violence

Cruel and/or Inhuman Treatment

Economic Fault

 

 

Definition provided by Smartdivorce.com

http://www.smartdivorce.com/articles/misconduct.shtml