Season 9: Episode 197: Angry Sex
When Debra and Marie have a big fight, Ray is struck with worry when he thinks Debra's anger will cause her to forget about their sex that night. But, it is the opposite when that anger causes a more intense night with sex. Ray really begins to enjoy it and realizes that the angrier Debra gets at Marie, the better sex they have. When Marie comes over to apologize, Ray makes up a chain of lies to both Marie and Debra so it doesn't ruin his plans.